diff --git a/your-code/.ipynb_checkpoints/Learning-checkpoint.ipynb b/your-code/.ipynb_checkpoints/Learning-checkpoint.ipynb
new file mode 100644
index 0000000..9511c2b
--- /dev/null
+++ b/your-code/.ipynb_checkpoints/Learning-checkpoint.ipynb
@@ -0,0 +1,556 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Dicts, Sets, and Tuples\n",
+    "\n",
+    "\n",
+    "Lesson Goals\n",
+    "\n",
+    "    Learn how to use tuples\n",
+    "    Learn how to use dicts\n",
+    "    Learn how to use sets\n",
+    "\n",
+    "Introduction\n",
+    "\n",
+    "In the previous lesson, we learned about lists. Lists are one of the most important data structures in Python. However, we cannot survive with lists alone. There are many use cases where other data structures are better suited. This lesson will introduce three other important data structures in Python.\n",
+    "Tuples\n",
+    "\n",
+    "Tuples are sequences just like list. However, the main difference between tuples and lists is that tuples are immutable. This means that the values inside of a tuple cannot be overwritten (or mutated) once the tuple is defined.\n",
+    "\n",
+    "We define tuples using parentheses and specify the sequence in our tuple as follows:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "chocolates = ('dark', 'milk', 'semi sweet')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We can retrieve any item in the tuple in the same way we would with a string. However, we cannot reassign new values to a tuple."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'dark'"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "chocolates[0]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "TypeError",
+     "evalue": "'tuple' object does not support item assignment",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
+      "\u001b[0;32m<ipython-input-3-40be201ff044>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mchocolates\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m3\u001b[0m\u001b[0;34m]\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'caramel filled'\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[0;31mTypeError\u001b[0m: 'tuple' object does not support item assignment"
+     ]
+    }
+   ],
+   "source": [
+    "chocolates[3] = 'caramel filled'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Similar to lists, we can find the length of a tuple using the len() function. We will also get an out of bounds error if we try to access a tuple position that is beyond the tuple's length. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "3"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "len(chocolates)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "IndexError",
+     "evalue": "tuple index out of range",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mIndexError\u001b[0m                                Traceback (most recent call last)",
+      "\u001b[0;32m<ipython-input-5-6f5a903b9efb>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mchocolates\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m10\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[0;31mIndexError\u001b[0m: tuple index out of range"
+     ]
+    }
+   ],
+   "source": [
+    "chocolates[10]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We can iterate through tuples just like we iterate through lists. However, as previously mentioned, we cannot change the values of the tuple."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "dark\n",
+      "milk\n",
+      "semi sweet\n"
+     ]
+    }
+   ],
+   "source": [
+    "for chocolate in chocolates:\n",
+    "    print(chocolate)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Dicts\n",
+    "\n",
+    "Sometimes we don't just want to store data in a sequence. There are cases where we want to easily retrieve our data rather than iterate through an entire list. There are also cases where we need to label our data. For example, the phone numbers stored in our phone are labeled using the name of our contacts. In these cases, it is better to use a dict. Dicts are a sequence of key value pairs. We store the data behind the scenes in a hash map. This means that we use the key to generate a unique index (called a hash) and store the value in the location marked by that index. This makes retrieval very fast.\n",
+    "\n",
+    "We can manually create a dict by specifying all keys and values separated by a colon within curly braces."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "contacts = {'John': '312-555-1234', 'Paul': '312-555-3123', 'George': '312-555-3333', 'Ringo': '312-555-2222'}"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We can access the keys and the values separately in a dict using the keys() and values() methods. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "dict_keys(['John', 'Paul', 'George', 'Ringo'])"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "contacts.keys()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "dict_values(['312-555-1234', '312-555-3123', '312-555-3333', '312-555-2222'])"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "contacts.values()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We can list both keys and values as tuples using the items() method.\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "dict_items([('John', '312-555-1234'), ('Paul', '312-555-3123'), ('George', '312-555-3333'), ('Ringo', '312-555-2222')])"
+      ]
+     },
+     "execution_count": 10,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "contacts.items()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We add new keys and values to a dict using the following syntax:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "contacts['Pete'] = '312-555-1111'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Dicts are not immutable. Therefore, we can change a value by reassigning a new value to a key."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "contacts['Paul'] = '312-555-4444'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We delete a record from a dict using the del command. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "del contacts['Pete']"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We can create an empty dict with only a pair of curly braces:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "empty_dict = {}"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Iterating Through a Dict\n",
+    "\n",
+    "We can use keys to iterate through the keys, values() to iterate through the values and items() to iterate through both simultaneously. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "John\n",
+      "Paul\n",
+      "George\n",
+      "Ringo\n",
+      "\n",
+      "312-555-1234\n",
+      "312-555-4444\n",
+      "312-555-3333\n",
+      "312-555-2222\n"
+     ]
+    }
+   ],
+   "source": [
+    "for i in contacts.keys():\n",
+    "     print(i)\n",
+    "\n",
+    "print ('')\n",
+    "\n",
+    "for i in contacts.values():\n",
+    "    print(i)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "John: 312-555-1234\n",
+      "Paul: 312-555-4444\n",
+      "George: 312-555-3333\n",
+      "Ringo: 312-555-2222\n"
+     ]
+    }
+   ],
+   "source": [
+    "for k, v in contacts.items():\n",
+    "     print(k+\": \"+v)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Dict Comprehensions\n",
+    "\n",
+    "Just like list comprehensions, we can also iterate through a dict to generate a new list or new dict. Below is an example of adding the country code to our contact dictionary."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "John: +1-312-555-1234\n",
+      "Paul: +1-312-555-4444\n",
+      "George: +1-312-555-3333\n",
+      "Ringo: +1-312-555-2222\n"
+     ]
+    }
+   ],
+   "source": [
+    "international = {k: \"+1-\"+v for k, v in contacts.items()}\n",
+    "for k, v in international.items():\n",
+    "     print(k+\": \"+v)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Sets\n",
+    "\n",
+    "Sets are unordered collections of unique elements. Similar to lists, they are also mutable. This means that we can insert and delete values to our set.\n",
+    "\n",
+    "We can define an empty set as follows:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "letters = set()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We then add to the set using the add command. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'a'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "letters.add('a')\n",
+    "\n",
+    "print(letters)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We can delete from our set using the remove command. The remove command will throw an error if the element does not exist in the set. We can use the pop command if we would like to try removing the element but do nothing if it is not in the set. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "set()\n"
+     ]
+    }
+   ],
+   "source": [
+    "letters.remove('a')\n",
+    "\n",
+    "print(letters)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Union, Intersection, and Difference\n",
+    "\n",
+    "The fact that sets contain unique values and are not ordered allows us to compare sets and find their union, intersection, and difference.\n",
+    "\n",
+    "We will look at examples of all three operations in the code block below."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'Logan', 'Madison'}\n",
+      "{'Logan', 'Joanna', 'John', 'Madison', 'Alexander', 'Mary'}\n",
+      "{'John', 'Alexander'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# We start off defining both sets. Note that we have to use both parentheses and brackets.\n",
+    "girl_names = set(['Mary', 'Madison', 'Logan', 'Joanna'])\n",
+    "boy_names = set(['John', 'Alexander', 'Logan', 'Madison'])\n",
+    "\n",
+    "# We find the unisex names by finding the intersection of boy and girl names\n",
+    "unisex_names = girl_names.intersection(boy_names)\n",
+    "print(unisex_names)\n",
+    "\n",
+    "\n",
+    "# We find the list of all names without duplicates by finding the union of both sets\n",
+    "all_names = boy_names.union(girl_names)\n",
+    "print(all_names)\n",
+    "\n",
+    "\n",
+    "# We find the difference between both sets by subtracting one set from the other\n",
+    "boy_only_names = boy_names - girl_names\n",
+    "print(boy_only_names)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb b/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb
new file mode 100644
index 0000000..2d69a3a
--- /dev/null
+++ b/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb
@@ -0,0 +1,344 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Challenge 1: Tuples\n",
+    "\n",
+    "#### Do you know you can create tuples with only one element?\n",
+    "\n",
+    "**In the cell below, define a variable `tup` with a single element `\"I\"`.**\n",
+    "\n",
+    "*Hint: you need to add a comma (`,`) after the single element.*"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Your code here\n",
+    "tup = (\"I\",)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Print the type of `tup`. \n",
+    "\n",
+    "Make sure its type is correct (i.e. *tuple* instead of *str*)."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I',)\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "print (tup)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Now try to append the following elements to `tup`. \n",
+    "\n",
+    "Are you able to do it? Explain.\n",
+    "\n",
+    "```\n",
+    "\"r\", \"o\", \"n\", \"h\", \"a\", \"c\", \"k',\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "AttributeError",
+     "evalue": "'tuple' object has no attribute 'append'",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[1;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
+      "\u001b[1;32m~\\AppData\\Local\\Temp/ipykernel_21656/4065759851.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m      1\u001b[0m \u001b[1;31m# Your code here\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 2\u001b[1;33m \u001b[0mtup\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"r\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"o\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"n\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"h\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"a\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"c\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"k\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m      3\u001b[0m \u001b[1;31m# Your explanation here\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m      4\u001b[0m \u001b[0mtup\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
+      "\u001b[1;31mAttributeError\u001b[0m: 'tuple' object has no attribute 'append'"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "tup.append(\"r\",\"o\",\"n\",\"h\",\"a\",\"c\",\"k\")\n",
+    "# Your explanation here\n",
+    "    #tuples are unmutable "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### How about re-assign a new value to an existing tuple?\n",
+    "\n",
+    "Re-assign the following elements to `tup`. Are you able to do it? Explain.\n",
+    "\n",
+    "```\n",
+    "\"I\", \"r\", \"o\", \"n\", \"h\", \"a\", \"c\", \"k\"\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I', 'r', 'o', 'n', 'h', 'a', 'c', 'k')\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "tup =((\"I\",\"r\",\"o\",\"n\",\"h\",\"a\",\"c\",\"k\"))\n",
+    "# Your explanation here\n",
+    "# tuples can be re-assing as many times you like\n",
+    "print(tup)\n",
+    "      "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Split `tup` into `tup1` and `tup2` with 4 elements in each. \n",
+    "\n",
+    "`tup1` should be `(\"I\", \"r\", \"o\", \"n\")` and `tup2` should be `(\"h\", \"a\", \"c\", \"k\")`.\n",
+    "\n",
+    "*Hint: use positive index numbers for `tup1` assignment and use negative index numbers for `tup2` assignment. Positive index numbers count from the beginning whereas negative index numbers count from the end of the sequence.*\n",
+    "\n",
+    "Also print `tup1` and `tup2`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I', 'r', 'o', 'n')\n",
+      "('h', 'a', 'c', 'k')\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "tup1 = tup[:4]\n",
+    "tup2 = tup [-4:]\n",
+    "print(tup1)\n",
+    "print(tup2)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Add `tup1` and `tup2` into `tup3` using the `+` operator.\n",
+    "\n",
+    "Then print `tup3` and check if `tup3` equals to `tup`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "they are equal\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "tup3= (tup1+tup2)\n",
+    "if tup3 == tup:\n",
+    "    print(\"they are equal\")\n",
+    "else:\n",
+    "    print(\"they are not equal\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Count the number of elements in `tup1` and `tup2`. Then add the two counts together and check if the sum is the same as the number of elements in `tup3`"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "they are the same\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "add = len(tup1)+ len(tup2)\n",
+    "if len(tup3) == add:\n",
+    "    print(\"they are the same\")\n",
+    "else:\n",
+    "    print(\"they are not the same\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### What is the index number of `\"h\"` in `tup3`?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "4"
+      ]
+     },
+     "execution_count": 15,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "tup3.index(\"h\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Now, use a FOR loop to check whether each letter in the following list is present in `tup3`:\n",
+    "\n",
+    "```\n",
+    "letters = [\"a\", \"b\", \"c\", \"d\", \"e\"]\n",
+    "```\n",
+    "\n",
+    "For each letter you check, print `True` if it is present in `tup3` otherwise print `False`.\n",
+    "\n",
+    "*Hint: you only need to loop `letters`. You don't need to loop `tup3` because there is a Python operator `in` you can use. See [reference](https://stackoverflow.com/questions/17920147/how-to-check-if-a-tuple-contains-an-element-in-python).*"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n",
+      "False\n",
+      "True\n",
+      "False\n",
+      "False\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "letters = [\"a\", \"b\", \"c\", \"d\", \"e\"]\n",
+    "for a in letters:\n",
+    "    if a in tup3:\n",
+    "        print('True')\n",
+    "    else:\n",
+    "        print(\"False\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### How many times does each letter in `letters` appear in `tup3`?\n",
+    "\n",
+    "Print out the number of occurrence of each letter."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "a --> 1\n",
+      "b --> 0\n",
+      "c --> 1\n",
+      "d --> 0\n",
+      "e --> 0\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "for letter in letters:\n",
+    "    print(letter, '-->', tup.count(letter))\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/your-code/.ipynb_checkpoints/challenge-2-checkpoint.ipynb b/your-code/.ipynb_checkpoints/challenge-2-checkpoint.ipynb
new file mode 100644
index 0000000..f36fabb
--- /dev/null
+++ b/your-code/.ipynb_checkpoints/challenge-2-checkpoint.ipynb
@@ -0,0 +1,462 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Challenge 2: Sets\n",
+    "\n",
+    "There are a lot to learn about Python Sets and the information presented in the lesson is limited due to its length. To learn Python Sets in depth you are strongly encouraged to review the W3Schools tutorial on [Python Sets Examples and Methods](https://www.w3schools.com/python/python_sets.asp) before you work on this lab. Some difficult questions in this lab have their solutions in the W3Schools tutorial.\n",
+    "\n",
+    "#### First, import the Python `random` libary"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import random"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### In the cell below, create a list named `sample_list_1` with 80 random values. \n",
+    "\n",
+    "Requirements:\n",
+    "\n",
+    "* Each value is an integer falling between 0 and 100.\n",
+    "* Each value in the list is unique.\n",
+    "\n",
+    "Print `sample_list_1` to review its values\n",
+    "\n",
+    "*Hint: use `random.sample` ([reference](https://docs.python.org/3/library/random.html#random.sample)).*"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[[50, 69, 2, 95, 19, 23, 68, 55, 45, 37, 59, 26, 22, 9, 47, 29, 12, 6, 4, 51, 31, 84, 99, 64, 34, 10, 13, 38, 54, 11, 58, 81, 36, 62, 30, 75, 91, 42, 88, 83, 70, 90, 27, 21, 0, 46, 66, 89, 71, 73, 28, 92, 8, 78, 32, 86, 80, 24, 96, 79, 61, 17, 1, 15, 98, 94, 65, 52, 43, 7, 93, 33, 85, 40, 53, 25, 60, 35, 76, 49]]\n",
+      "1\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "sample_list_1 = [random.sample(range(100),k=80)]\n",
+    "print(sample_list_1)\n",
+    "print(len(sample_list_1))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Convert `sample_list_1` to a set called `set1`. Print the length of the set. Is its length still 80?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "80\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set1 = set(sample_list_1[0])\n",
+    "print(len(set1))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Create another list named `sample_list_2` with 80 random values.\n",
+    "\n",
+    "Requirements:\n",
+    "\n",
+    "* Each value is an integer falling between 0 and 100.\n",
+    "* The values in the list don't have to be unique.\n",
+    "\n",
+    "*Hint: Use a FOR loop.*"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[94, 7, 40, 9, 29, 8, 62, 48, 63, 39, 2, 45, 76, 63, 61, 91, 47, 41, 55, 32, 26, 19, 19, 6, 91, 93, 68, 87, 72, 81, 2, 43, 9, 25, 36, 64, 56, 39, 25, 70, 74, 74, 69, 18, 29, 93, 95, 26, 44, 83, 23, 47, 75, 6, 67, 60, 4, 65, 97, 10, 9, 44, 70, 5, 54, 46, 72, 56, 65, 2, 91, 72, 4, 23, 50, 40, 80, 91, 34, 62]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "sample_list_2 = []\n",
+    "for a in range(80):\n",
+    "    sample_list_2.append(random.randrange(1,100,1))\n",
+    "print(sample_list_2)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Convert `sample_list_2` to a set called `set2`. Print the length of the set. Is its length still 80?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "53\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set2 = set(sample_list_2)\n",
+    "print(len(set2))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Identify the elements present in `set1` but not in `set2`. Assign the elements to a new set named `set3`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 1, 11, 12, 13, 15, 17, 21, 22, 24, 27, 28, 30, 31, 33, 35, 37, 38, 42, 49, 51, 52, 53, 58, 59, 66, 71, 73, 78, 79, 84, 85, 86, 88, 89, 90, 92, 96, 98, 99}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set3 = set1.difference(set2)\n",
+    "print(set3)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Identify the elements present in `set2` but not in `set1`. Assign the elements to a new set named `set4`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{97, 67, 5, 39, 72, 41, 74, 44, 48, 18, 87, 56, 63}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set4 = set2.difference(set1)\n",
+    "print(set4)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Now Identify the elements shared between `set1` and `set2`. Assign the elements to a new set named `set5`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{2, 4, 6, 7, 8, 9, 10, 19, 23, 25, 26, 29, 32, 34, 36, 40, 43, 45, 46, 47, 50, 54, 55, 60, 61, 62, 64, 65, 68, 69, 70, 75, 76, 80, 81, 83, 91, 93, 94, 95}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set5 = set1.intersection(set2)\n",
+    "print(set5)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### What is the relationship among the following values:\n",
+    "\n",
+    "* len(set1)\n",
+    "* len(set2)\n",
+    "* len(set3)\n",
+    "* len(set4)\n",
+    "* len(set5)\n",
+    "\n",
+    "Use a math formular to represent that relationship. Test your formular with Python code."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "'''len(set1) random 1\n",
+    "len(set2) random 2\n",
+    "len(set3) diff 1 y 2\n",
+    "len(set4) diff 2 y 1\n",
+    "len(set5) inter 2 y 1\n",
+    "'''\n",
+    "print(len(set1)+len(set2)== len(set3)+len(set4)+(2*len(set5)))\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Create an empty set called `set6`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Your code here\n",
+    "set6 = set()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Add `set3` and `set5` to `set6` using the Python Set `update` method."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Your code here\n",
+    "set6.update(set3,set5)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Check if `set1` and `set6` are equal."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "They are equal\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "if set1 == set6:\n",
+    "    print(\"They are equal\")\n",
+    "else:\n",
+    "    print(\"They are not equal\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Check if `set1` contains `set2` using the Python Set `issubset` method. Then check if `set1` contains `set3`.*"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "False"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set1.issubset(set2)\n",
+    "set1.issubset(set3)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Using the Python Set `union` method, aggregate `set3`, `set4`, and `set5`. Then aggregate `set1` and `set2`. \n",
+    "\n",
+    "#### Check if the aggregated values are equal."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set3.union(set4,set5)\n",
+    "print(set1.union(set2))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Using the `pop` method, remove the first element from `set1`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Your code here\n",
+    "remove = set1.pop()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Remove every element in the following list from `set1` if they are present in the set. Print the remaining elements.\n",
+    "\n",
+    "```\n",
+    "list_to_remove = [1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69, 71, 79, 81, 89, 91, 99]\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{2, 4, 6, 7, 8, 10, 12, 13, 15, 17, 22, 23, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 37, 38, 40, 42, 43, 45, 46, 47, 50, 52, 53, 54, 55, 58, 60, 62, 64, 65, 66, 68, 70, 73, 75, 76, 78, 80, 83, 84, 85, 86, 88, 90, 92, 93, 94, 95, 96, 98}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "list_to_remove = [1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69, 71, 79, 81, 89, 91, 99]\n",
+    "for a in list_to_remove:\n",
+    "    if a in set1:\n",
+    "        set1.remove(a)\n",
+    "print(set1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/your-code/.ipynb_checkpoints/challenge-3-checkpoint.ipynb b/your-code/.ipynb_checkpoints/challenge-3-checkpoint.ipynb
new file mode 100644
index 0000000..ee22d6d
--- /dev/null
+++ b/your-code/.ipynb_checkpoints/challenge-3-checkpoint.ipynb
@@ -0,0 +1,835 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Challenge 3: Dictionaries\n",
+    "\n",
+    "In this challenge you will practice how to manipulate Python dictionaries. Before starting on this challenge, you are encouraged to review W3School's [Python Dictionary Examples and Methods](https://www.w3schools.com/python/python_dictionaries.asp).\n",
+    "\n",
+    "First thing you will practice is how to sort the keys in a dictionary. Unlike the list object, Python dictionary does not have a built-in *sort* method. You'll need to use FOR loops to to sort dictionaries either by key or by value.\n",
+    "\n",
+    "The dictionary below is a summary of the word frequency of Ed Sheeran's song *Shape of You*. Each key is a word in the lyrics and the value is the number of times that word appears in the lyrics."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "word_freq = {'love': 25, 'conversation': 1, 'every': 6, \"we're\": 1, 'plate': 1, 'sour': 1, 'jukebox': 1, 'now': 11, 'taxi': 1, 'fast': 1, 'bag': 1, 'man': 1, 'push': 3, 'baby': 14, 'going': 1, 'you': 16, \"don't\": 2, 'one': 1, 'mind': 2, 'backseat': 1, 'friends': 1, 'then': 3, 'know': 2, 'take': 1, 'play': 1, 'okay': 1, 'so': 2, 'begin': 1, 'start': 2, 'over': 1, 'body': 17, 'boy': 2, 'just': 1, 'we': 7, 'are': 1, 'girl': 2, 'tell': 1, 'singing': 2, 'drinking': 1, 'put': 3, 'our': 1, 'where': 1, \"i'll\": 1, 'all': 1, \"isn't\": 1, 'make': 1, 'lover': 1, 'get': 1, 'radio': 1, 'give': 1, \"i'm\": 23, 'like': 10, 'can': 1, 'doing': 2, 'with': 22, 'club': 1, 'come': 37, 'it': 1, 'somebody': 2, 'handmade': 2, 'out': 1, 'new': 6, 'room': 3, 'chance': 1, 'follow': 6, 'in': 27, 'may': 2, 'brand': 6, 'that': 2, 'magnet': 3, 'up': 3, 'first': 1, 'and': 23, 'pull': 3, 'of': 6, 'table': 1, 'much': 2, 'last': 3, 'i': 6, 'thrifty': 1, 'grab': 2, 'was': 2, 'driver': 1, 'slow': 1, 'dance': 1, 'the': 18, 'say': 2, 'trust': 1, 'family': 1, 'week': 1, 'date': 1, 'me': 10, 'do': 3, 'waist': 2, 'smell': 3, 'day': 6, 'although': 3, 'your': 21, 'leave': 1, 'want': 2, \"let's\": 2, 'lead': 6, 'at': 1, 'hand': 1, 'how': 1, 'talk': 4, 'not': 2, 'eat': 1, 'falling': 3, 'about': 1, 'story': 1, 'sweet': 1, 'best': 1, 'crazy': 2, 'let': 1, 'too': 5, 'van': 1, 'shots': 1, 'go': 2, 'to': 2, 'a': 8, 'my': 33, 'is': 5, 'place': 1, 'find': 1, 'shape': 6, 'on': 40, 'kiss': 1, 'were': 3, 'night': 3, 'heart': 3, 'for': 3, 'discovering': 6, 'something': 6, 'be': 16, 'bedsheets': 3, 'fill': 2, 'hours': 2, 'stop': 1, 'bar': 1}"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Sort the keys of `word_freq` ascendingly.\n",
+    "\n",
+    "Please create a new dictionary called `word_freq2` based on `word_freq` with the keys sorted ascedingly.\n",
+    "\n",
+    "There are several ways to achieve that goal but many of the ways are beyond what we have covered so far in the course. There is one way that we'll describe employing what you have learned. Please feel free to use this way or any other way you want.\n",
+    "\n",
+    "1. First extract the keys of `word_freq` and convert it to a list called `keys`.\n",
+    "\n",
+    "1. Sort the `keys` list.\n",
+    "\n",
+    "1. Create an empty dictionary `word_freq2`.\n",
+    "\n",
+    "1. Use a FOR loop to iterate each value in `keys`. For each key iterated, find the corresponding value in `word_freq` and insert the key-value pair to `word_freq2`.\n",
+    "\n",
+    "Print out `word_freq2` to examine its keys and values. Your output should be:\n",
+    "\n",
+    "```python\n",
+    "{'a': 8, 'about': 1, 'all': 1, 'although': 3, 'and': 23, 'are': 1, 'at': 1, 'baby': 14, 'backseat': 1, 'bag': 1, 'bar': 1, 'be': 16, 'bedsheets': 3, 'begin': 1, 'best': 1, 'body': 17, 'boy': 2, 'brand': 6, 'can': 1, 'chance': 1, 'club': 1, 'come': 37, 'conversation': 1, 'crazy': 2, 'dance': 1, 'date': 1, 'day': 6, 'discovering': 6, 'do': 3, 'doing': 2, \"don't\": 2, 'drinking': 1, 'driver': 1, 'eat': 1, 'every': 6, 'falling': 3, 'family': 1, 'fast': 1, 'fill': 2, 'find': 1, 'first': 1, 'follow': 6, 'for': 3, 'friends': 1, 'get': 1, 'girl': 2, 'give': 1, 'go': 2, 'going': 1, 'grab': 2, 'hand': 1, 'handmade': 2, 'heart': 3, 'hours': 2, 'how': 1, 'i': 6, \"i'll\": 1, \"i'm\": 23, 'in': 27, 'is': 5, \"isn't\": 1, 'it': 1, 'jukebox': 1, 'just': 1, 'kiss': 1, 'know': 2, 'last': 3, 'lead': 6, 'leave': 1, 'let': 1, \"let's\": 2, 'like': 10, 'love': 25, 'lover': 1, 'magnet': 3, 'make': 1, 'man': 1, 'may': 2, 'me': 10, 'mind': 2, 'much': 2, 'my': 33, 'new': 6, 'night': 3, 'not': 2, 'now': 11, 'of': 6, 'okay': 1, 'on': 40, 'one': 1, 'our': 1, 'out': 1, 'over': 1, 'place': 1, 'plate': 1, 'play': 1, 'pull': 3, 'push': 3, 'put': 3, 'radio': 1, 'room': 3, 'say': 2, 'shape': 6, 'shots': 1, 'singing': 2, 'slow': 1, 'smell': 3, 'so': 2, 'somebody': 2, 'something': 6, 'sour': 1, 'start': 2, 'stop': 1, 'story': 1, 'sweet': 1, 'table': 1, 'take': 1, 'talk': 4, 'taxi': 1, 'tell': 1, 'that': 2, 'the': 18, 'then': 3, 'thrifty': 1, 'to': 2, 'too': 5, 'trust': 1, 'up': 3, 'van': 1, 'waist': 2, 'want': 2, 'was': 2, 'we': 7, \"we're\": 1, 'week': 1, 'were': 3, 'where': 1, 'with': 22, 'you': 16, 'your': 21}\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('a', 8),\n",
+       " ('about', 1),\n",
+       " ('all', 1),\n",
+       " ('although', 3),\n",
+       " ('and', 23),\n",
+       " ('are', 1),\n",
+       " ('at', 1),\n",
+       " ('baby', 14),\n",
+       " ('backseat', 1),\n",
+       " ('bag', 1),\n",
+       " ('bar', 1),\n",
+       " ('be', 16),\n",
+       " ('bedsheets', 3),\n",
+       " ('begin', 1),\n",
+       " ('best', 1),\n",
+       " ('body', 17),\n",
+       " ('boy', 2),\n",
+       " ('brand', 6),\n",
+       " ('can', 1),\n",
+       " ('chance', 1),\n",
+       " ('club', 1),\n",
+       " ('come', 37),\n",
+       " ('conversation', 1),\n",
+       " ('crazy', 2),\n",
+       " ('dance', 1),\n",
+       " ('date', 1),\n",
+       " ('day', 6),\n",
+       " ('discovering', 6),\n",
+       " ('do', 3),\n",
+       " ('doing', 2),\n",
+       " (\"don't\", 2),\n",
+       " ('drinking', 1),\n",
+       " ('driver', 1),\n",
+       " ('eat', 1),\n",
+       " ('every', 6),\n",
+       " ('falling', 3),\n",
+       " ('family', 1),\n",
+       " ('fast', 1),\n",
+       " ('fill', 2),\n",
+       " ('find', 1),\n",
+       " ('first', 1),\n",
+       " ('follow', 6),\n",
+       " ('for', 3),\n",
+       " ('friends', 1),\n",
+       " ('get', 1),\n",
+       " ('girl', 2),\n",
+       " ('give', 1),\n",
+       " ('go', 2),\n",
+       " ('going', 1),\n",
+       " ('grab', 2),\n",
+       " ('hand', 1),\n",
+       " ('handmade', 2),\n",
+       " ('heart', 3),\n",
+       " ('hours', 2),\n",
+       " ('how', 1),\n",
+       " ('i', 6),\n",
+       " (\"i'll\", 1),\n",
+       " (\"i'm\", 23),\n",
+       " ('in', 27),\n",
+       " ('is', 5),\n",
+       " (\"isn't\", 1),\n",
+       " ('it', 1),\n",
+       " ('jukebox', 1),\n",
+       " ('just', 1),\n",
+       " ('kiss', 1),\n",
+       " ('know', 2),\n",
+       " ('last', 3),\n",
+       " ('lead', 6),\n",
+       " ('leave', 1),\n",
+       " ('let', 1),\n",
+       " (\"let's\", 2),\n",
+       " ('like', 10),\n",
+       " ('love', 25),\n",
+       " ('lover', 1),\n",
+       " ('magnet', 3),\n",
+       " ('make', 1),\n",
+       " ('man', 1),\n",
+       " ('may', 2),\n",
+       " ('me', 10),\n",
+       " ('mind', 2),\n",
+       " ('much', 2),\n",
+       " ('my', 33),\n",
+       " ('new', 6),\n",
+       " ('night', 3),\n",
+       " ('not', 2),\n",
+       " ('now', 11),\n",
+       " ('of', 6),\n",
+       " ('okay', 1),\n",
+       " ('on', 40),\n",
+       " ('one', 1),\n",
+       " ('our', 1),\n",
+       " ('out', 1),\n",
+       " ('over', 1),\n",
+       " ('place', 1),\n",
+       " ('plate', 1),\n",
+       " ('play', 1),\n",
+       " ('pull', 3),\n",
+       " ('push', 3),\n",
+       " ('put', 3),\n",
+       " ('radio', 1),\n",
+       " ('room', 3),\n",
+       " ('say', 2),\n",
+       " ('shape', 6),\n",
+       " ('shots', 1),\n",
+       " ('singing', 2),\n",
+       " ('slow', 1),\n",
+       " ('smell', 3),\n",
+       " ('so', 2),\n",
+       " ('somebody', 2),\n",
+       " ('something', 6),\n",
+       " ('sour', 1),\n",
+       " ('start', 2),\n",
+       " ('stop', 1),\n",
+       " ('story', 1),\n",
+       " ('sweet', 1),\n",
+       " ('table', 1),\n",
+       " ('take', 1),\n",
+       " ('talk', 4),\n",
+       " ('taxi', 1),\n",
+       " ('tell', 1),\n",
+       " ('that', 2),\n",
+       " ('the', 18),\n",
+       " ('then', 3),\n",
+       " ('thrifty', 1),\n",
+       " ('to', 2),\n",
+       " ('too', 5),\n",
+       " ('trust', 1),\n",
+       " ('up', 3),\n",
+       " ('van', 1),\n",
+       " ('waist', 2),\n",
+       " ('want', 2),\n",
+       " ('was', 2),\n",
+       " ('we', 7),\n",
+       " (\"we're\", 1),\n",
+       " ('week', 1),\n",
+       " ('were', 3),\n",
+       " ('where', 1),\n",
+       " ('with', 22),\n",
+       " ('you', 16),\n",
+       " ('your', 21)]"
+      ]
+     },
+     "execution_count": 17,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "import operator\n",
+    "word_freq_2 = sorted(word_freq.items(),key = operator.itemgetter(0))\n",
+    "word_freq_2"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Sort the values of `word_freq` ascendingly.\n",
+    "\n",
+    "Sorting the values of a dictionary is more tricky than sorting the keys because a dictionary's values are not unique. Therefore you cannot use the same way you sorted dict keys to sort dict values.\n",
+    "\n",
+    "The way to sort a dict by value is to utilize the `sorted` and `operator.itemgetter` functions. The following code snippet is provided to you to try. It will give you a list of tuples in which each tuple contains the key and value of a dict item. And the list is sorted based on the dict value ([reference](http://thomas-cokelaer.info/blog/2017/12/how-to-sort-a-dictionary-by-values-in-python/)\n",
+    ").\n",
+    "\n",
+    "```python\n",
+    "import operator\n",
+    "sorted_tups = sorted(word_freq.items(), key=operator.itemgetter(1))\n",
+    "print(sorted_tups)\n",
+    "```\n",
+    "\n",
+    "Therefore, the steps to sort `word_freq` by value are:\n",
+    "\n",
+    "* Using `sorted` and `operator.itemgetter`, obtain a list of tuples of the dict key-value pairs which is sorted on the value.\n",
+    "\n",
+    "* Create an empty dictionary named `word_freq2`.\n",
+    "\n",
+    "* Iterate the list of tuples. Insert each key-value pair into `word_freq2` as an object.\n",
+    "\n",
+    "Print `word_freq2` to confirm your dictionary has its values sorted. Your output should be:\n",
+    "\n",
+    "```python\n",
+    "{'conversation': 1, \"we're\": 1, 'plate': 1, 'sour': 1, 'jukebox': 1, 'taxi': 1, 'fast': 1, 'bag': 1, 'man': 1, 'going': 1, 'one': 1, 'backseat': 1, 'friends': 1, 'take': 1, 'play': 1, 'okay': 1, 'begin': 1, 'over': 1, 'just': 1, 'are': 1, 'tell': 1, 'drinking': 1, 'our': 1, 'where': 1, \"i'll\": 1, 'all': 1, \"isn't\": 1, 'make': 1, 'lover': 1, 'get': 1, 'radio': 1, 'give': 1, 'can': 1, 'club': 1, 'it': 1, 'out': 1, 'chance': 1, 'first': 1, 'table': 1, 'thrifty': 1, 'driver': 1, 'slow': 1, 'dance': 1, 'trust': 1, 'family': 1, 'week': 1, 'date': 1, 'leave': 1, 'at': 1, 'hand': 1, 'how': 1, 'eat': 1, 'about': 1, 'story': 1, 'sweet': 1, 'best': 1, 'let': 1, 'van': 1, 'shots': 1, 'place': 1, 'find': 1, 'kiss': 1, 'stop': 1, 'bar': 1, \"don't\": 2, 'mind': 2, 'know': 2, 'so': 2, 'start': 2, 'boy': 2, 'girl': 2, 'singing': 2, 'doing': 2, 'somebody': 2, 'handmade': 2, 'may': 2, 'that': 2, 'much': 2, 'grab': 2, 'was': 2, 'say': 2, 'waist': 2, 'want': 2, \"let's\": 2, 'not': 2, 'crazy': 2, 'go': 2, 'to': 2, 'fill': 2, 'hours': 2, 'push': 3, 'then': 3, 'put': 3, 'room': 3, 'magnet': 3, 'up': 3, 'pull': 3, 'last': 3, 'do': 3, 'smell': 3, 'although': 3, 'falling': 3, 'were': 3, 'night': 3, 'heart': 3, 'for': 3, 'bedsheets': 3, 'talk': 4, 'too': 5, 'is': 5, 'every': 6, 'new': 6, 'follow': 6, 'brand': 6, 'of': 6, 'i': 6, 'day': 6, 'lead': 6, 'shape': 6, 'discovering': 6, 'something': 6, 'we': 7, 'a': 8, 'like': 10, 'me': 10, 'now': 11, 'baby': 14, 'you': 16, 'be': 16, 'body': 17, 'the': 18, 'your': 21, 'with': 22, \"i'm\": 23, 'and': 23, 'love': 25, 'in': 27, 'my': 33, 'come': 37, 'on': 40}\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('conversation', 1),\n",
+       " (\"we're\", 1),\n",
+       " ('plate', 1),\n",
+       " ('sour', 1),\n",
+       " ('jukebox', 1),\n",
+       " ('taxi', 1),\n",
+       " ('fast', 1),\n",
+       " ('bag', 1),\n",
+       " ('man', 1),\n",
+       " ('going', 1),\n",
+       " ('one', 1),\n",
+       " ('backseat', 1),\n",
+       " ('friends', 1),\n",
+       " ('take', 1),\n",
+       " ('play', 1),\n",
+       " ('okay', 1),\n",
+       " ('begin', 1),\n",
+       " ('over', 1),\n",
+       " ('just', 1),\n",
+       " ('are', 1),\n",
+       " ('tell', 1),\n",
+       " ('drinking', 1),\n",
+       " ('our', 1),\n",
+       " ('where', 1),\n",
+       " (\"i'll\", 1),\n",
+       " ('all', 1),\n",
+       " (\"isn't\", 1),\n",
+       " ('make', 1),\n",
+       " ('lover', 1),\n",
+       " ('get', 1),\n",
+       " ('radio', 1),\n",
+       " ('give', 1),\n",
+       " ('can', 1),\n",
+       " ('club', 1),\n",
+       " ('it', 1),\n",
+       " ('out', 1),\n",
+       " ('chance', 1),\n",
+       " ('first', 1),\n",
+       " ('table', 1),\n",
+       " ('thrifty', 1),\n",
+       " ('driver', 1),\n",
+       " ('slow', 1),\n",
+       " ('dance', 1),\n",
+       " ('trust', 1),\n",
+       " ('family', 1),\n",
+       " ('week', 1),\n",
+       " ('date', 1),\n",
+       " ('leave', 1),\n",
+       " ('at', 1),\n",
+       " ('hand', 1),\n",
+       " ('how', 1),\n",
+       " ('eat', 1),\n",
+       " ('about', 1),\n",
+       " ('story', 1),\n",
+       " ('sweet', 1),\n",
+       " ('best', 1),\n",
+       " ('let', 1),\n",
+       " ('van', 1),\n",
+       " ('shots', 1),\n",
+       " ('place', 1),\n",
+       " ('find', 1),\n",
+       " ('kiss', 1),\n",
+       " ('stop', 1),\n",
+       " ('bar', 1),\n",
+       " (\"don't\", 2),\n",
+       " ('mind', 2),\n",
+       " ('know', 2),\n",
+       " ('so', 2),\n",
+       " ('start', 2),\n",
+       " ('boy', 2),\n",
+       " ('girl', 2),\n",
+       " ('singing', 2),\n",
+       " ('doing', 2),\n",
+       " ('somebody', 2),\n",
+       " ('handmade', 2),\n",
+       " ('may', 2),\n",
+       " ('that', 2),\n",
+       " ('much', 2),\n",
+       " ('grab', 2),\n",
+       " ('was', 2),\n",
+       " ('say', 2),\n",
+       " ('waist', 2),\n",
+       " ('want', 2),\n",
+       " (\"let's\", 2),\n",
+       " ('not', 2),\n",
+       " ('crazy', 2),\n",
+       " ('go', 2),\n",
+       " ('to', 2),\n",
+       " ('fill', 2),\n",
+       " ('hours', 2),\n",
+       " ('push', 3),\n",
+       " ('then', 3),\n",
+       " ('put', 3),\n",
+       " ('room', 3),\n",
+       " ('magnet', 3),\n",
+       " ('up', 3),\n",
+       " ('pull', 3),\n",
+       " ('last', 3),\n",
+       " ('do', 3),\n",
+       " ('smell', 3),\n",
+       " ('although', 3),\n",
+       " ('falling', 3),\n",
+       " ('were', 3),\n",
+       " ('night', 3),\n",
+       " ('heart', 3),\n",
+       " ('for', 3),\n",
+       " ('bedsheets', 3),\n",
+       " ('talk', 4),\n",
+       " ('too', 5),\n",
+       " ('is', 5),\n",
+       " ('every', 6),\n",
+       " ('new', 6),\n",
+       " ('follow', 6),\n",
+       " ('brand', 6),\n",
+       " ('of', 6),\n",
+       " ('i', 6),\n",
+       " ('day', 6),\n",
+       " ('lead', 6),\n",
+       " ('shape', 6),\n",
+       " ('discovering', 6),\n",
+       " ('something', 6),\n",
+       " ('we', 7),\n",
+       " ('a', 8),\n",
+       " ('like', 10),\n",
+       " ('me', 10),\n",
+       " ('now', 11),\n",
+       " ('baby', 14),\n",
+       " ('you', 16),\n",
+       " ('be', 16),\n",
+       " ('body', 17),\n",
+       " ('the', 18),\n",
+       " ('your', 21),\n",
+       " ('with', 22),\n",
+       " (\"i'm\", 23),\n",
+       " ('and', 23),\n",
+       " ('love', 25),\n",
+       " ('in', 27),\n",
+       " ('my', 33),\n",
+       " ('come', 37),\n",
+       " ('on', 40)]"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "word_freq_2 = sorted(word_freq.items(),key = operator.itemgetter(1))\n",
+    "word_freq_2"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Convert `word_freq` into Pandas dataframes\n",
+    "\n",
+    "In your future work, you may need to convert Python dictionaries to Pandas dataframes. So let's practice this by converting `word_freq`.\n",
+    "\n",
+    "**First, import the `pandas` library.**"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [],
+   "source": [
+    "import pandas as pd"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "**Then, use the `pd.DataFrame()` constructor to convert `word_freq` into a dataframe.**\n",
+    "\n",
+    "Here's a [reference](https://stackoverflow.com/questions/18837262/convert-python-dict-into-a-dataframe) to show you how to accomplish this. Also name the two columns of the dataframe as `word` and `freq`.\n",
+    "\n",
+    "Assign the converted value to a variable called `df`. The first few rows of `df` should look like this:\n",
+    "\n",
+    "![df](df.png)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 27,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Word</th>\n",
+       "      <th>Freq</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>love</td>\n",
+       "      <td>25</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>conversation</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>every</td>\n",
+       "      <td>6</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>we're</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>plate</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>135</th>\n",
+       "      <td>bedsheets</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>136</th>\n",
+       "      <td>fill</td>\n",
+       "      <td>2</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>137</th>\n",
+       "      <td>hours</td>\n",
+       "      <td>2</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>138</th>\n",
+       "      <td>stop</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>139</th>\n",
+       "      <td>bar</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>140 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "             Word  Freq\n",
+       "0            love    25\n",
+       "1    conversation     1\n",
+       "2           every     6\n",
+       "3           we're     1\n",
+       "4           plate     1\n",
+       "..            ...   ...\n",
+       "135     bedsheets     3\n",
+       "136          fill     2\n",
+       "137         hours     2\n",
+       "138          stop     1\n",
+       "139           bar     1\n",
+       "\n",
+       "[140 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 27,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "df = pd.DataFrame(word_freq.items(),columns=['Word', 'Freq'])\n",
+    "df"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "With the Pandas DataFrame, you can sort the values easily with the built-in method `sort_values` ([reference](https://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.sort_values.html)).\n",
+    "\n",
+    "#### Sort `df` ascendingly based on column `word`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 37,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Word</th>\n",
+       "      <th>Freq</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>120</th>\n",
+       "      <td>a</td>\n",
+       "      <td>8</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>109</th>\n",
+       "      <td>about</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>43</th>\n",
+       "      <td>all</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>96</th>\n",
+       "      <td>although</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>72</th>\n",
+       "      <td>and</td>\n",
+       "      <td>23</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>128</th>\n",
+       "      <td>were</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>41</th>\n",
+       "      <td>where</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>54</th>\n",
+       "      <td>with</td>\n",
+       "      <td>22</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>15</th>\n",
+       "      <td>you</td>\n",
+       "      <td>16</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>97</th>\n",
+       "      <td>your</td>\n",
+       "      <td>21</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>140 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "         Word  Freq\n",
+       "120         a     8\n",
+       "109     about     1\n",
+       "43        all     1\n",
+       "96   although     3\n",
+       "72        and    23\n",
+       "..        ...   ...\n",
+       "128      were     3\n",
+       "41      where     1\n",
+       "54       with    22\n",
+       "15        you    16\n",
+       "97       your    21\n",
+       "\n",
+       "[140 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 37,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "df.sort_values('Word', ascending=True)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Sort `df` ascendingly based on column `freq`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 39,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Word</th>\n",
+       "      <th>Freq</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>139</th>\n",
+       "      <td>bar</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>114</th>\n",
+       "      <td>let</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>116</th>\n",
+       "      <td>van</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>60</th>\n",
+       "      <td>out</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>57</th>\n",
+       "      <td>it</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>love</td>\n",
+       "      <td>25</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>65</th>\n",
+       "      <td>in</td>\n",
+       "      <td>27</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>121</th>\n",
+       "      <td>my</td>\n",
+       "      <td>33</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>56</th>\n",
+       "      <td>come</td>\n",
+       "      <td>37</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>126</th>\n",
+       "      <td>on</td>\n",
+       "      <td>40</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>140 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "     Word  Freq\n",
+       "139   bar     1\n",
+       "114   let     1\n",
+       "116   van     1\n",
+       "60    out     1\n",
+       "57     it     1\n",
+       "..    ...   ...\n",
+       "0    love    25\n",
+       "65     in    27\n",
+       "121    my    33\n",
+       "56   come    37\n",
+       "126    on    40\n",
+       "\n",
+       "[140 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 39,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "df.sort_values('Freq', ascending=True)\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/your-code/Learning.ipynb b/your-code/Learning.ipynb
index b6764a1..9511c2b 100755
--- a/your-code/Learning.ipynb
+++ b/your-code/Learning.ipynb
@@ -534,7 +534,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -548,7 +548,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.9.6"
   }
  },
  "nbformat": 4,
diff --git a/your-code/challenge-1.ipynb b/your-code/challenge-1.ipynb
index 2e59d77..2d69a3a 100755
--- a/your-code/challenge-1.ipynb
+++ b/your-code/challenge-1.ipynb
@@ -15,11 +15,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "tup = (\"I\",)"
    ]
   },
   {
@@ -33,11 +34,20 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I',)\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "print (tup)"
    ]
   },
   {
@@ -55,13 +65,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "ename": "AttributeError",
+     "evalue": "'tuple' object has no attribute 'append'",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[1;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
+      "\u001b[1;32m~\\AppData\\Local\\Temp/ipykernel_21656/4065759851.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m      1\u001b[0m \u001b[1;31m# Your code here\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 2\u001b[1;33m \u001b[0mtup\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"r\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"o\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"n\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"h\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"a\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"c\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"k\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m      3\u001b[0m \u001b[1;31m# Your explanation here\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m      4\u001b[0m \u001b[0mtup\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
+      "\u001b[1;31mAttributeError\u001b[0m: 'tuple' object has no attribute 'append'"
+     ]
+    }
+   ],
    "source": [
     "# Your code here\n",
-    "\n",
-    "# Your explanation here\n"
+    "tup.append(\"r\",\"o\",\"n\",\"h\",\"a\",\"c\",\"k\")\n",
+    "# Your explanation here\n",
+    "    #tuples are unmutable "
    ]
   },
   {
@@ -79,13 +102,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I', 'r', 'o', 'n', 'h', 'a', 'c', 'k')\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here\n",
-    "\n",
-    "# Your explanation here\n"
+    "tup =((\"I\",\"r\",\"o\",\"n\",\"h\",\"a\",\"c\",\"k\"))\n",
+    "# Your explanation here\n",
+    "# tuples can be re-assing as many times you like\n",
+    "print(tup)\n",
+    "      "
    ]
   },
   {
@@ -103,11 +137,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I', 'r', 'o', 'n')\n",
+      "('h', 'a', 'c', 'k')\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "tup1 = tup[:4]\n",
+    "tup2 = tup [-4:]\n",
+    "print(tup1)\n",
+    "print(tup2)"
    ]
   },
   {
@@ -121,11 +168,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "they are equal\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "tup3= (tup1+tup2)\n",
+    "if tup3 == tup:\n",
+    "    print(\"they are equal\")\n",
+    "else:\n",
+    "    print(\"they are not equal\")"
    ]
   },
   {
@@ -137,11 +197,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "they are the same\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "add = len(tup1)+ len(tup2)\n",
+    "if len(tup3) == add:\n",
+    "    print(\"they are the same\")\n",
+    "else:\n",
+    "    print(\"they are not the same\")"
    ]
   },
   {
@@ -153,11 +226,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 15,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "4"
+      ]
+     },
+     "execution_count": 15,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "tup3.index(\"h\")"
    ]
   },
   {
@@ -177,11 +262,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n",
+      "False\n",
+      "True\n",
+      "False\n",
+      "False\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "letters = [\"a\", \"b\", \"c\", \"d\", \"e\"]\n",
+    "for a in letters:\n",
+    "    if a in tup3:\n",
+    "        print('True')\n",
+    "    else:\n",
+    "        print(\"False\")"
    ]
   },
   {
@@ -195,17 +298,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 20,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "a --> 1\n",
+      "b --> 0\n",
+      "c --> 1\n",
+      "d --> 0\n",
+      "e --> 0\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "for letter in letters:\n",
+    "    print(letter, '-->', tup.count(letter))\n"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -219,7 +336,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.9.6"
   }
  },
  "nbformat": 4,
diff --git a/your-code/challenge-2.ipynb b/your-code/challenge-2.ipynb
index 41d6911..f36fabb 100755
--- a/your-code/challenge-2.ipynb
+++ b/your-code/challenge-2.ipynb
@@ -13,7 +13,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -38,11 +38,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[[50, 69, 2, 95, 19, 23, 68, 55, 45, 37, 59, 26, 22, 9, 47, 29, 12, 6, 4, 51, 31, 84, 99, 64, 34, 10, 13, 38, 54, 11, 58, 81, 36, 62, 30, 75, 91, 42, 88, 83, 70, 90, 27, 21, 0, 46, 66, 89, 71, 73, 28, 92, 8, 78, 32, 86, 80, 24, 96, 79, 61, 17, 1, 15, 98, 94, 65, 52, 43, 7, 93, 33, 85, 40, 53, 25, 60, 35, 76, 49]]\n",
+      "1\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "sample_list_1 = [random.sample(range(100),k=80)]\n",
+    "print(sample_list_1)\n",
+    "print(len(sample_list_1))"
    ]
   },
   {
@@ -54,11 +66,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "80\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set1 = set(sample_list_1[0])\n",
+    "print(len(set1))"
    ]
   },
   {
@@ -77,11 +99,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[94, 7, 40, 9, 29, 8, 62, 48, 63, 39, 2, 45, 76, 63, 61, 91, 47, 41, 55, 32, 26, 19, 19, 6, 91, 93, 68, 87, 72, 81, 2, 43, 9, 25, 36, 64, 56, 39, 25, 70, 74, 74, 69, 18, 29, 93, 95, 26, 44, 83, 23, 47, 75, 6, 67, 60, 4, 65, 97, 10, 9, 44, 70, 5, 54, 46, 72, 56, 65, 2, 91, 72, 4, 23, 50, 40, 80, 91, 34, 62]\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "sample_list_2 = []\n",
+    "for a in range(80):\n",
+    "    sample_list_2.append(random.randrange(1,100,1))\n",
+    "print(sample_list_2)"
    ]
   },
   {
@@ -93,11 +127,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "53\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set2 = set(sample_list_2)\n",
+    "print(len(set2))"
    ]
   },
   {
@@ -109,11 +153,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 1, 11, 12, 13, 15, 17, 21, 22, 24, 27, 28, 30, 31, 33, 35, 37, 38, 42, 49, 51, 52, 53, 58, 59, 66, 71, 73, 78, 79, 84, 85, 86, 88, 89, 90, 92, 96, 98, 99}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set3 = set1.difference(set2)\n",
+    "print(set3)"
    ]
   },
   {
@@ -125,11 +179,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{97, 67, 5, 39, 72, 41, 74, 44, 48, 18, 87, 56, 63}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set4 = set2.difference(set1)\n",
+    "print(set4)"
    ]
   },
   {
@@ -141,11 +205,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 9,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{2, 4, 6, 7, 8, 9, 10, 19, 23, 25, 26, 29, 32, 34, 36, 40, 43, 45, 46, 47, 50, 54, 55, 60, 61, 62, 64, 65, 68, 69, 70, 75, 76, 80, 81, 83, 91, 93, 94, 95}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set5 = set1.intersection(set2)\n",
+    "print(set5)"
    ]
   },
   {
@@ -165,11 +239,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "'''len(set1) random 1\n",
+    "len(set2) random 2\n",
+    "len(set3) diff 1 y 2\n",
+    "len(set4) diff 2 y 1\n",
+    "len(set5) inter 2 y 1\n",
+    "'''\n",
+    "print(len(set1)+len(set2)== len(set3)+len(set4)+(2*len(set5)))\n"
    ]
   },
   {
@@ -181,11 +270,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set6 = set()"
    ]
   },
   {
@@ -197,11 +287,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set6.update(set3,set5)"
    ]
   },
   {
@@ -213,11 +304,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "They are equal\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "if set1 == set6:\n",
+    "    print(\"They are equal\")\n",
+    "else:\n",
+    "    print(\"They are not equal\")"
    ]
   },
   {
@@ -229,11 +332,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 14,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "False"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set1.issubset(set2)\n",
+    "set1.issubset(set3)"
    ]
   },
   {
@@ -247,11 +363,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 15,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set3.union(set4,set5)\n",
+    "print(set1.union(set2))"
    ]
   },
   {
@@ -263,11 +389,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "remove = set1.pop()"
    ]
   },
   {
@@ -281,19 +408,39 @@
     "```"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{2, 4, 6, 7, 8, 10, 12, 13, 15, 17, 22, 23, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 37, 38, 40, 42, 43, 45, 46, 47, 50, 52, 53, 54, 55, 58, 60, 62, 64, 65, 66, 68, 70, 73, 75, 76, 78, 80, 83, 84, 85, 86, 88, 90, 92, 93, 94, 95, 96, 98}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "list_to_remove = [1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69, 71, 79, 81, 89, 91, 99]\n",
+    "for a in list_to_remove:\n",
+    "    if a in set1:\n",
+    "        set1.remove(a)\n",
+    "print(set1)"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
    "metadata": {},
    "outputs": [],
-   "source": [
-    "# Your code here\n"
-   ]
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -307,7 +454,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.9.6"
   }
  },
  "nbformat": 4,
diff --git a/your-code/challenge-3.ipynb b/your-code/challenge-3.ipynb
index 7ab8ea5..ee22d6d 100755
--- a/your-code/challenge-3.ipynb
+++ b/your-code/challenge-3.ipynb
@@ -15,7 +15,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -49,11 +49,164 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 17,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('a', 8),\n",
+       " ('about', 1),\n",
+       " ('all', 1),\n",
+       " ('although', 3),\n",
+       " ('and', 23),\n",
+       " ('are', 1),\n",
+       " ('at', 1),\n",
+       " ('baby', 14),\n",
+       " ('backseat', 1),\n",
+       " ('bag', 1),\n",
+       " ('bar', 1),\n",
+       " ('be', 16),\n",
+       " ('bedsheets', 3),\n",
+       " ('begin', 1),\n",
+       " ('best', 1),\n",
+       " ('body', 17),\n",
+       " ('boy', 2),\n",
+       " ('brand', 6),\n",
+       " ('can', 1),\n",
+       " ('chance', 1),\n",
+       " ('club', 1),\n",
+       " ('come', 37),\n",
+       " ('conversation', 1),\n",
+       " ('crazy', 2),\n",
+       " ('dance', 1),\n",
+       " ('date', 1),\n",
+       " ('day', 6),\n",
+       " ('discovering', 6),\n",
+       " ('do', 3),\n",
+       " ('doing', 2),\n",
+       " (\"don't\", 2),\n",
+       " ('drinking', 1),\n",
+       " ('driver', 1),\n",
+       " ('eat', 1),\n",
+       " ('every', 6),\n",
+       " ('falling', 3),\n",
+       " ('family', 1),\n",
+       " ('fast', 1),\n",
+       " ('fill', 2),\n",
+       " ('find', 1),\n",
+       " ('first', 1),\n",
+       " ('follow', 6),\n",
+       " ('for', 3),\n",
+       " ('friends', 1),\n",
+       " ('get', 1),\n",
+       " ('girl', 2),\n",
+       " ('give', 1),\n",
+       " ('go', 2),\n",
+       " ('going', 1),\n",
+       " ('grab', 2),\n",
+       " ('hand', 1),\n",
+       " ('handmade', 2),\n",
+       " ('heart', 3),\n",
+       " ('hours', 2),\n",
+       " ('how', 1),\n",
+       " ('i', 6),\n",
+       " (\"i'll\", 1),\n",
+       " (\"i'm\", 23),\n",
+       " ('in', 27),\n",
+       " ('is', 5),\n",
+       " (\"isn't\", 1),\n",
+       " ('it', 1),\n",
+       " ('jukebox', 1),\n",
+       " ('just', 1),\n",
+       " ('kiss', 1),\n",
+       " ('know', 2),\n",
+       " ('last', 3),\n",
+       " ('lead', 6),\n",
+       " ('leave', 1),\n",
+       " ('let', 1),\n",
+       " (\"let's\", 2),\n",
+       " ('like', 10),\n",
+       " ('love', 25),\n",
+       " ('lover', 1),\n",
+       " ('magnet', 3),\n",
+       " ('make', 1),\n",
+       " ('man', 1),\n",
+       " ('may', 2),\n",
+       " ('me', 10),\n",
+       " ('mind', 2),\n",
+       " ('much', 2),\n",
+       " ('my', 33),\n",
+       " ('new', 6),\n",
+       " ('night', 3),\n",
+       " ('not', 2),\n",
+       " ('now', 11),\n",
+       " ('of', 6),\n",
+       " ('okay', 1),\n",
+       " ('on', 40),\n",
+       " ('one', 1),\n",
+       " ('our', 1),\n",
+       " ('out', 1),\n",
+       " ('over', 1),\n",
+       " ('place', 1),\n",
+       " ('plate', 1),\n",
+       " ('play', 1),\n",
+       " ('pull', 3),\n",
+       " ('push', 3),\n",
+       " ('put', 3),\n",
+       " ('radio', 1),\n",
+       " ('room', 3),\n",
+       " ('say', 2),\n",
+       " ('shape', 6),\n",
+       " ('shots', 1),\n",
+       " ('singing', 2),\n",
+       " ('slow', 1),\n",
+       " ('smell', 3),\n",
+       " ('so', 2),\n",
+       " ('somebody', 2),\n",
+       " ('something', 6),\n",
+       " ('sour', 1),\n",
+       " ('start', 2),\n",
+       " ('stop', 1),\n",
+       " ('story', 1),\n",
+       " ('sweet', 1),\n",
+       " ('table', 1),\n",
+       " ('take', 1),\n",
+       " ('talk', 4),\n",
+       " ('taxi', 1),\n",
+       " ('tell', 1),\n",
+       " ('that', 2),\n",
+       " ('the', 18),\n",
+       " ('then', 3),\n",
+       " ('thrifty', 1),\n",
+       " ('to', 2),\n",
+       " ('too', 5),\n",
+       " ('trust', 1),\n",
+       " ('up', 3),\n",
+       " ('van', 1),\n",
+       " ('waist', 2),\n",
+       " ('want', 2),\n",
+       " ('was', 2),\n",
+       " ('we', 7),\n",
+       " (\"we're\", 1),\n",
+       " ('week', 1),\n",
+       " ('were', 3),\n",
+       " ('where', 1),\n",
+       " ('with', 22),\n",
+       " ('you', 16),\n",
+       " ('your', 21)]"
+      ]
+     },
+     "execution_count": 17,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "import operator\n",
+    "word_freq_2 = sorted(word_freq.items(),key = operator.itemgetter(0))\n",
+    "word_freq_2"
    ]
   },
   {
@@ -90,11 +243,163 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('conversation', 1),\n",
+       " (\"we're\", 1),\n",
+       " ('plate', 1),\n",
+       " ('sour', 1),\n",
+       " ('jukebox', 1),\n",
+       " ('taxi', 1),\n",
+       " ('fast', 1),\n",
+       " ('bag', 1),\n",
+       " ('man', 1),\n",
+       " ('going', 1),\n",
+       " ('one', 1),\n",
+       " ('backseat', 1),\n",
+       " ('friends', 1),\n",
+       " ('take', 1),\n",
+       " ('play', 1),\n",
+       " ('okay', 1),\n",
+       " ('begin', 1),\n",
+       " ('over', 1),\n",
+       " ('just', 1),\n",
+       " ('are', 1),\n",
+       " ('tell', 1),\n",
+       " ('drinking', 1),\n",
+       " ('our', 1),\n",
+       " ('where', 1),\n",
+       " (\"i'll\", 1),\n",
+       " ('all', 1),\n",
+       " (\"isn't\", 1),\n",
+       " ('make', 1),\n",
+       " ('lover', 1),\n",
+       " ('get', 1),\n",
+       " ('radio', 1),\n",
+       " ('give', 1),\n",
+       " ('can', 1),\n",
+       " ('club', 1),\n",
+       " ('it', 1),\n",
+       " ('out', 1),\n",
+       " ('chance', 1),\n",
+       " ('first', 1),\n",
+       " ('table', 1),\n",
+       " ('thrifty', 1),\n",
+       " ('driver', 1),\n",
+       " ('slow', 1),\n",
+       " ('dance', 1),\n",
+       " ('trust', 1),\n",
+       " ('family', 1),\n",
+       " ('week', 1),\n",
+       " ('date', 1),\n",
+       " ('leave', 1),\n",
+       " ('at', 1),\n",
+       " ('hand', 1),\n",
+       " ('how', 1),\n",
+       " ('eat', 1),\n",
+       " ('about', 1),\n",
+       " ('story', 1),\n",
+       " ('sweet', 1),\n",
+       " ('best', 1),\n",
+       " ('let', 1),\n",
+       " ('van', 1),\n",
+       " ('shots', 1),\n",
+       " ('place', 1),\n",
+       " ('find', 1),\n",
+       " ('kiss', 1),\n",
+       " ('stop', 1),\n",
+       " ('bar', 1),\n",
+       " (\"don't\", 2),\n",
+       " ('mind', 2),\n",
+       " ('know', 2),\n",
+       " ('so', 2),\n",
+       " ('start', 2),\n",
+       " ('boy', 2),\n",
+       " ('girl', 2),\n",
+       " ('singing', 2),\n",
+       " ('doing', 2),\n",
+       " ('somebody', 2),\n",
+       " ('handmade', 2),\n",
+       " ('may', 2),\n",
+       " ('that', 2),\n",
+       " ('much', 2),\n",
+       " ('grab', 2),\n",
+       " ('was', 2),\n",
+       " ('say', 2),\n",
+       " ('waist', 2),\n",
+       " ('want', 2),\n",
+       " (\"let's\", 2),\n",
+       " ('not', 2),\n",
+       " ('crazy', 2),\n",
+       " ('go', 2),\n",
+       " ('to', 2),\n",
+       " ('fill', 2),\n",
+       " ('hours', 2),\n",
+       " ('push', 3),\n",
+       " ('then', 3),\n",
+       " ('put', 3),\n",
+       " ('room', 3),\n",
+       " ('magnet', 3),\n",
+       " ('up', 3),\n",
+       " ('pull', 3),\n",
+       " ('last', 3),\n",
+       " ('do', 3),\n",
+       " ('smell', 3),\n",
+       " ('although', 3),\n",
+       " ('falling', 3),\n",
+       " ('were', 3),\n",
+       " ('night', 3),\n",
+       " ('heart', 3),\n",
+       " ('for', 3),\n",
+       " ('bedsheets', 3),\n",
+       " ('talk', 4),\n",
+       " ('too', 5),\n",
+       " ('is', 5),\n",
+       " ('every', 6),\n",
+       " ('new', 6),\n",
+       " ('follow', 6),\n",
+       " ('brand', 6),\n",
+       " ('of', 6),\n",
+       " ('i', 6),\n",
+       " ('day', 6),\n",
+       " ('lead', 6),\n",
+       " ('shape', 6),\n",
+       " ('discovering', 6),\n",
+       " ('something', 6),\n",
+       " ('we', 7),\n",
+       " ('a', 8),\n",
+       " ('like', 10),\n",
+       " ('me', 10),\n",
+       " ('now', 11),\n",
+       " ('baby', 14),\n",
+       " ('you', 16),\n",
+       " ('be', 16),\n",
+       " ('body', 17),\n",
+       " ('the', 18),\n",
+       " ('your', 21),\n",
+       " ('with', 22),\n",
+       " (\"i'm\", 23),\n",
+       " ('and', 23),\n",
+       " ('love', 25),\n",
+       " ('in', 27),\n",
+       " ('my', 33),\n",
+       " ('come', 37),\n",
+       " ('on', 40)]"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "word_freq_2 = sorted(word_freq.items(),key = operator.itemgetter(1))\n",
+    "word_freq_2"
    ]
   },
   {
@@ -110,8 +415,10 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
+   "execution_count": 21,
+   "metadata": {
+    "scrolled": true
+   },
    "outputs": [],
    "source": [
     "import pandas as pd"
@@ -132,11 +439,121 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 27,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Word</th>\n",
+       "      <th>Freq</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>love</td>\n",
+       "      <td>25</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>conversation</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>every</td>\n",
+       "      <td>6</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>we're</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>plate</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>135</th>\n",
+       "      <td>bedsheets</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>136</th>\n",
+       "      <td>fill</td>\n",
+       "      <td>2</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>137</th>\n",
+       "      <td>hours</td>\n",
+       "      <td>2</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>138</th>\n",
+       "      <td>stop</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>139</th>\n",
+       "      <td>bar</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>140 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "             Word  Freq\n",
+       "0            love    25\n",
+       "1    conversation     1\n",
+       "2           every     6\n",
+       "3           we're     1\n",
+       "4           plate     1\n",
+       "..            ...   ...\n",
+       "135     bedsheets     3\n",
+       "136          fill     2\n",
+       "137         hours     2\n",
+       "138          stop     1\n",
+       "139           bar     1\n",
+       "\n",
+       "[140 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 27,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "df = pd.DataFrame(word_freq.items(),columns=['Word', 'Freq'])\n",
+    "df"
    ]
   },
   {
@@ -150,11 +567,122 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "execution_count": 37,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Word</th>\n",
+       "      <th>Freq</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>120</th>\n",
+       "      <td>a</td>\n",
+       "      <td>8</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>109</th>\n",
+       "      <td>about</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>43</th>\n",
+       "      <td>all</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>96</th>\n",
+       "      <td>although</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>72</th>\n",
+       "      <td>and</td>\n",
+       "      <td>23</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>128</th>\n",
+       "      <td>were</td>\n",
+       "      <td>3</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>41</th>\n",
+       "      <td>where</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>54</th>\n",
+       "      <td>with</td>\n",
+       "      <td>22</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>15</th>\n",
+       "      <td>you</td>\n",
+       "      <td>16</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>97</th>\n",
+       "      <td>your</td>\n",
+       "      <td>21</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>140 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "         Word  Freq\n",
+       "120         a     8\n",
+       "109     about     1\n",
+       "43        all     1\n",
+       "96   although     3\n",
+       "72        and    23\n",
+       "..        ...   ...\n",
+       "128      were     3\n",
+       "41      where     1\n",
+       "54       with    22\n",
+       "15        you    16\n",
+       "97       your    21\n",
+       "\n",
+       "[140 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 37,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "df.sort_values('Word', ascending=True)"
    ]
   },
   {
@@ -166,17 +694,126 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 39,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Word</th>\n",
+       "      <th>Freq</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>139</th>\n",
+       "      <td>bar</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>114</th>\n",
+       "      <td>let</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>116</th>\n",
+       "      <td>van</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>60</th>\n",
+       "      <td>out</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>57</th>\n",
+       "      <td>it</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>love</td>\n",
+       "      <td>25</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>65</th>\n",
+       "      <td>in</td>\n",
+       "      <td>27</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>121</th>\n",
+       "      <td>my</td>\n",
+       "      <td>33</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>56</th>\n",
+       "      <td>come</td>\n",
+       "      <td>37</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>126</th>\n",
+       "      <td>on</td>\n",
+       "      <td>40</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>140 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "     Word  Freq\n",
+       "139   bar     1\n",
+       "114   let     1\n",
+       "116   van     1\n",
+       "60    out     1\n",
+       "57     it     1\n",
+       "..    ...   ...\n",
+       "0    love    25\n",
+       "65     in    27\n",
+       "121    my    33\n",
+       "56   come    37\n",
+       "126    on    40\n",
+       "\n",
+       "[140 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 39,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "df.sort_values('Freq', ascending=True)\n"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -190,7 +827,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.9.6"
   }
  },
  "nbformat": 4,