n, k = map(int, input().split())

seen = set()
L = [1]
for _ in range(k):
    NL = []
    while L:
        a = L.pop()
        b = 2 * a
        c = a + 3
        if b <= k and b not in seen:
            seen.add(b)
            NL.append(b)
        if c <= k and c not in seen:
            seen.add(c)
            NL.append(c)
    L = NL[:]
if k in seen:
    print("YES")
else:
    print("NO")