import math def myCondense(a): copyNum = a remainder = 0 result = 0 while(copyNum != 0): remainder = copyNum % 10; result += remainder; copyNum = math.floor(copyNum / 10); return result num = 8654 userValue = num while(num > 9): num = myCondense(num) print("Single Digit of %d: %d" % (userValue, num))