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

if (min(A) == A[1] or max(A) == A[1]) and len(list(set(A))) == 3:
    print("INF")
    exit()

res = 0
for i in range(1, max(A) + 1):
    B = [a % i for a in A]
    if (min(B) == B[1] or max(B) == B[1]) and len(list(set(B))) == 3:
        res += 1

print(res)