from typing import Sequence


def is_kadomatsu(numbers: Sequence[int]) -> bool:
    assert len(numbers) == 3
    if numbers[0] == numbers[2]:
        return False

    if numbers[0] < numbers[1] and numbers[1] > numbers[2]:
        return True
    if numbers[0] > numbers[1] and numbers[1] < numbers[2]:
        return True

    return False


def main():
    A = list(map(int, input().split()))
    if is_kadomatsu(A):
        print("INF")
        return

    print(sum(map(is_kadomatsu,
                  [list(map(lambda num: num % p, A)) for p in range(1, 1001)])))


if __name__ == "__main__":
    main()