N,K = map(int,input().split())
if N < K:
    print("INF")
    exit()
Q = []
for i in range(N,N+K+1):
    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:
            ans += 1
            #print(q1,q2)
print(ans)