a = list(map(int, input().split(' ')))
if False in [a[i%3] != a[(i+1)%3] for i in range(3)]:
    print(0)
else:
    if max(a) == a[1] or min(a) == a[1]:
        print('INF')
    else:
        cnt = 0
        for j in range(3,max(a)+1):
            t = list(map(lambda x: x % j, a))
            if False not in [t[i % 3] != t[(i + 1) % 3] for i in range(3)]:
                if max(t) == t[1] or min(t) == t[1]:
                    cnt += 1
        print(cnt)