mod = 998244353


def main():
    import sys
    input = sys.stdin.readline

    H, W = map(int, input().split())

    print("Yes")
    ans = [[0] * W for _ in range(H)]
    for h in range(H):
        for w in range(W):
            if (h + w) & 1:
                ans[h][w] = H * W - (h * W + w)
            else:
                ans[h][w] = h * W + w + 1
    for h in range(H):
        print(*ans[h])

    S = ans[0][0] + ans[0][1] + ans[1][0] + ans[1][1]
    for h in range(H - 1):
        for w in range(W - 1):
            assert ans[h][w] + ans[h+1][w] + ans[h][w+1] + ans[h+1][w+1] == S


if __name__ == '__main__':
    main()