a, b, c = map(int, input().split())

if a == b or b == c or a == c:
    print(0)

elif max(a, b, c) == b or min(a, b, c) == b:
    print('INF')

else:
    x = 0
    for i in range(2, max(a+1, b+1, c+1)):
        A = a % i
        B = b % i
        C = c % i
        if (A < B > C or A > B < C) and A != C:
            x += 1
    print(x)