#include <bits/stdc++.h>
using namespace std;
const int MN = 1e5 + 5;
int n, m, i, j, s;
vector<int> arr[MN], a, b, t;
int main() {
  scanf("%d%d", &n, &m);
  if (n > m) swap(n, m), s = 1;
  if (n == 1 && m == 1)
    printf("YES\n1\n");
  else if (n == 3 && m == 3)
    printf("YES\n6 1 8\n2 9 4\n7 5 3\n");
  else if (m <= 3)
    printf("NO\n");
  else {
    for (i = 0; i < n; i++) {
      a.clear();
      b.clear();
      for (j = 0; j < m; j++) {
        if (!s) {
          if (j & 1)
            a.push_back(i * m + j + 1);
          else
            b.push_back(i * m + j + 1);
        } else {
          if (j & 1)
            a.push_back(j * n + i + 1);
          else
            b.push_back(j * n + i + 1);
        }
      }
      if (m & 1) {
        if (i & 1) {
          for (auto v : a) arr[i].push_back(v);
          for (auto v : b) arr[i].push_back(v);
        } else {
          for (auto v : b) arr[i].push_back(v);
          for (auto v : a) arr[i].push_back(v);
        }
      } else {
        t.clear();
        for (auto v : a) t.push_back(v);
        for (auto v : b) t.push_back(v);
        if (i & 1) {
          for (j = 0; j < m; j++) arr[i].push_back(t[m - j - 1]);
        } else {
          for (j = 0; j < m; j++) arr[i].push_back(t[j]);
        }
      }
    }
    printf("YES\n");
    if (s) {
      for (i = 0; i < m; i++) {
        for (j = 0; j < n; j++) printf("%d ", arr[j][i]);
        printf("\n");
      }
    } else {
      for (i = 0; i < n; i++) {
        for (j = 0; j < m; j++) printf("%d ", arr[i][j]);
        printf("\n");
      }
    }
  }
}
