[백준] 2231 - 분해합 (파이썬)

num = int(input())
low = 0

def number(low_num):
    e = list(map(int, str(low_num)))
    result = low_num + sum(e)
    
    return result

while number(low) != num:
    if low == num :
        low = 0
        break
    else : 
        low += 1

print(low)