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

l = [[x, y]]
z = [[-2, -1], [-2, 1], [-1, -2], [-1, 2], [1, -2], [1, 2], [2, -1], [2, 1]]

for _ in range(3):
    ll = [[x, y]]
    for i, j in l:
        for m, n in z:
            i += m
            j += n
            ll.append([i, j])
            i -= m
            j -= n
    l = ll

print('YES' if [0, 0] in l else 'NO')