def main():
    A, B, C = map(int, input().split())
    if A == C:
        print("0")
    # すでに成立している
    elif A > B and B < C:
        print("INF")
    # すでに成立している
    elif A < B and B > C:
        print("INF")
    else:
        print(count_kadomatsu(A, B, C))

def count_kadomatsu(a, b, c):
    max_val = max([a, b, c])
    count = 0
    for i in range(max_val):
        divider = i + 1
        if check_kadomatsu(a % divider, b % divider, c % divider):
            count += 1
    return count

def check_kadomatsu(a, b, c):
    if a == b or b == c or c == a:
        return False
    elif a > b and b < c:
        return True
    elif a < b and b > c:
        return True
    else: False


if __name__ == '__main__':
    main()