from lib import get_data, ints

data = get_data(__file__)
a, b = ints(data)

v = 1
subject_number = 7
al, bl = None, None

for loop in range(100_000_000):
    v *= subject_number
    v %= 20201227
    if al is None and v == a:
        al = loop + 1
    if bl is None and v == b:
        bl = loop + 1

    if al and bl:
        break

assert al is not None
assert bl is not None
# print(al, bl)

v = 1
subject_number = b
for _ in range(al):
    v *= subject_number
    v %= 20201227

print(v)