diff --git a/Week4/Week 4 Programming Assignment 2.py b/Week4/Week 4 Programming Assignment 2.py
new file mode 100644
index 0000000..c5e640a
--- /dev/null
+++ b/Week4/Week 4 Programming Assignment 2.py	
@@ -0,0 +1,23 @@
+def fact(num):
+
+ product=1
+
+ while(num>1):
+
+   product*=num
+
+   num-=1
+
+ return product
+
+m=int(input())  #m=men
+
+n=int(input())  #n=women
+
+if  m+n>20 or m<=n:
+
+ print('invalid',end="")
+
+else:
+
+  print(fact(m)*fact(n)*fact(m+1)//(fact(n)*fact(m+1-n)),end="")
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