diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..6134dc6 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,11 +37,93 @@
     "\n",
     "3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for  the products that were ordered (those in \"customer_orders\")."
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "c5b6afd1",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'t-shirt': 10, 'mug': 20, 'hat': 30, 'book': 40, 'keychain': 50}"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
+    "inventory={}\n",
+    "for product in products:\n",
+    "    quantity=int(input(f\"enter the quantity for {product}\"))\n",
+    "    inventory[product]=quantity\n",
+    "\n",
+    "inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "985af248",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'book', 'mug'}"
+      ]
+     },
+     "execution_count": 19,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "customer_orders=set()\n",
+    "\n",
+    "added_another=\"yes\"\n",
+    "\n",
+    "while added_another==\"yes\":\n",
+    "    product_name=input(\"enter the product you want to add\")\n",
+    "    customer_orders.add(product_name)\n",
+    "    added_another=input(\"do you want to contiune to order product? (yes/no)\")\n",
+    "customer_orders\n",
+    "\n",
+    "\n",
+    "    "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "af1366e5",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "products in customers order {'mug', 'book'}\n",
+      "updated inventory {'t-shirt': 10, 'mug': 17, 'hat': 30, 'book': 37, 'keychain': 50}\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "for product in customer_orders:\n",
+    "    inventory[product] -= 1\n",
+    "print(\"products in customers order\",customer_orders)\n",
+    "print(\"updated inventory\",inventory)\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +137,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.11.9"
   }
  },
  "nbformat": 4,