def is_kadomatsu(a, b, c):
    ans = False
    if b == min(a, b, c) or b == max(a, b, c):
        if a != b and b != c and c != a:
            ans = True
    return ans

A = list(map(int, input().split()))

if is_kadomatsu(*A):
    print('INF')
else:
    cnt = 0
    for i in range(1, max(A) + 1):
        B = [x % i for x in A]
        if is_kadomatsu(*B):
            cnt += 1
    print(cnt)