/* -*- coding: utf-8 -*-
 *
 * 2112.cc:  No.2112 All 2x2 are Equal - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_H = 1000;
const int MAX_W = 1000;

/* typedef */

/* global variables */

int as[MAX_H][MAX_W];

/* subroutines */

/* main */

int main() {
  int h, w;
  scanf("%d%d", &h, &w);

  int x = 1, y = h * w;
  for (int i = 0; i + 1 < h; i += 2)
    for (int j = 0; j < w; j++) {
      int p = j & 1;
      as[i + p][j] = x++, as[i + (p ^ 1)][j] = y--;
    }

  if (h & 1) {
    int s = as[0][0] + as[0][1] + as[1][0] + as[1][1];
    as[h - 1][0] = x++;
    for (int j = 1; j < w; j++)
      as[h - 1][j] = s - (as[h - 2][j - 1] + as[h - 2][j] + as[h - 1][j - 1]);
  }

  puts("Yes");
  for (int i = 0; i < h; i++)
    for (int j = 0; j < w; j++)
      printf("%d%c", as[i][j], (j + 1 < w) ? ' ' : '\n');

  return 0;
}