import itertools import sys text = sys.stdin.read() A, B = map(int, text.splitlines()) val = 1 subj = 7 for i in itertools.count(): val = (val * subj) % 20201227 if val == A: loopA = i + 1 break val = 1 subj = B for _ in range(loopA): val = (val * subj) % 20201227 print(val)