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#coding: utf-8
import math


def translate(num,base_num):
    if num < base_num:
        return str(num)
    else:
        n = int(math.log10(num)/math.log10(base_num))+1
        trans_num = ''
        for i in range(n):
            num_add = num/(base_num**(n-i-1))        
            trans_num = trans_num + str(num_add)
            num = num - num_add*(base_num**(n-i-1))
        return trans_num

if __name__ == '__main__':
    print translate(100,2)
    print translate(100,8)
    print translate(100,5)