[백준] 16953번 Python 파이썬 https://www.acmicpc.net/problem/16953 16953번: A → B 첫째 줄에 A, B (1 ≤ A a, b = map(int, input().split()) result = 0 while True: if a == b: print(result + 1) break elif b % 10 == 1: b = b //10 result += 1 if b < a: print(-1) break elif b % 2 == 0: b = b // 2 re..