# Ask the user for the number to calculate
usersNumber = input('Give me a number ->')

answer = usersNumber

# Do the factorial
for i in range(usersNumber-1, 1, -1):
   # print i
    answer = answer * i
   # print answer
    
    #answer = usersNumber * (usersNumber-1)
    #answer = answer * (usersNumber -2)
    #answer = answer * 3
    #answer = answer * 2
    #answer = answer * 1
    
    # Start with the user's number
    # Multiply the user's number by 1 less
    # do it over and over
    


# Output the answer
print 'The final answer is ',answer