x, y = map(int, input().split())

ans = 0
l = [[x, y]]
for i, j in l:
    if i == 0 and j == 0:
        ans += 1
    elif i % 2 == j % 2 == 1:
        ans += 0
    elif i % 2 == 0 and j % 2 != 0:
        l.append([i//2, j-1])
    elif i % 2 != 0 and j % 2 == 0:
        l.append([i-1, j//2])
    else:
        l.append([i//2, j-1])
        l.append([i-1, j//2])

print(['No', 'Yes'][ans != 0])