card_public_key, door_public_key = 12092626, 4707356
# card_public_key, door_public_key = 5764801, 17807724


def loop_size_from(expected):
    value = 1
    subject_number = 7
    count = 0
    while value != expected:
        count += 1
        value = (value * subject_number) % 20201227
    return count


card_loop_size = loop_size_from(card_public_key)
# door_loop_size = loop_size_from(door_public_key)

print(card_loop_size)
# print(door_loop_size)


def encryption(public_key, loop_size):
    value = 1
    subject_number = public_key
    for _ in range(loop_size):
        value = (value * subject_number) % 20201227
    return value

# e1 = encryption(card_public_key, door_loop_size)
e2 = encryption(door_public_key, card_loop_size)


# print(e1)
print(e2)