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

if len(set(A)) <= 2:
    print(0)
elif max(A) == A[1] or min(A) == A[1]:
    if A[0] != A[2]:
        print("INF")
    else:
        print(0)
else:
    ans = 0
    p = 1
    while p <= max(A):
        if A[0]%p < A[1]%p > A[2]%p or A[0]%p > A[1]%p < A[2]%p:
            if A[0]%p != A[2]%p:
                ans += 1
        p += 1
    print(ans)