팩토리얼 진법

import math
import sys

n = sys.stdin.readlines()
n = [x.strip('\r\n') for x in n]

for ele in n:
    if ele =='0':
        break
    res =0
    for idx,ele in enumerate(ele[::-1]):
        res+=math.factorial(idx+1)*int(ele)
    print(res)