A = list(map(int, input().split()))
if len(set(A)) != 3:
    print(0)
    exit()

def kad(A):
    if len(set(A)) != 3:
        return False
    if A[1] in (max(A), min(A)):
        return True
    return False
    
if kad(A):
    print("INF")
    exit()

ans = 0
for p in range(1, max(A) + 1):
    B = [a % p for a in A]
    if kad(B):
        ans += 1
        
print(ans)