a = list(map(int, input().split()))
a1, a2, a3 = a

def is_kadomatsu(one, two, three):
    if len({one, two, three}) != 3:
        return False
    max_val = max(one, two, three)
    min_val = min(one, two, three)
    return two == max_val or two == min_val

if is_kadomatsu(a1, a2, a3):
    print("INF")
else:
    max_p = max(a1, a2, a3)
    count = 0
    for p in range(2, max_p + 1):
        b1 = a1 % p
        b2 = a2 % p
        b3 = a3 % p
        if b1 == b2 or b2 == b3 or b1 == b3:
            continue
        current_max = max(b1, b2, b3)
        current_min = min(b1, b2, b3)
        if b2 == current_max or b2 == current_min:
            count += 1
    print(count)