N,K = map(int,input().split())
if N == 0:
    if K == 0:
        print(0)
    else:
        print("INF")
    exit()
Q = []
for i in range(N,100000):
    if N & i == N:
        Q.append(i)
ans = 0
for q1 in Q:
    for q2 in Q:
        if q1 < q2:
            break
        if q1 & q2 == N and q1 - q2 <= K:
            ans += 1
print(ans)