def getlist():
	return list(map(int, input().split()))
N, K = getlist()
x = N.bit_length()

if 2 ** x <= K:
	print("INF")
else:
	y = K.bit_length()
	ans = 0
	L = []
	for i in range(x):
		if N & 1 == 0:
			L.append(2 ** i)
		N >>= 1

	for i in range(1 << len(L)):
		for j in range(len(L)):
			A = 0
			B = 0
			if ((i >> j) & 1) == 1:
				A += L[j]
			for v in range(1 << len(L)):
				for w in range(len(L)):
					if ((i >> j) & 1) == 1:
						B += L[j]
			if B - A <= K and A & B == 0:
				ans += 1

	print(ans)