X factorial, also written as X!X! , is X(X1)(X2)(X3)....(1)X(X1)(X2)(X3)....(1) .

So, 4! is 4*3*2*1= 24

We provide you with a value N. Calculate N! and output only the final result.

# Get N from the command line import sys N = int(sys.argv[1])

# Your code goes here f =24 for num in range(4*3*2*1): f *= 24 print (f)