#include <bits/stdc++.h>
using namespace std;
int main(){
  int H, W;
  cin >> H >> W;
  vector<vector<int>> A(H, vector<int>(W, 0));
  int ans = 0;
  for (int i = 0; i < H - 1; i += 2){
    for (int j = 0; j < W - 1; j += 2){
      A[i][j] = 1;
      A[i][j + 1] = 1;
      A[i + 1][j] = 1;
      A[i + 1][j + 1] = 1;
      ans += 4;
    }
  }
  if (H >= 3 && W >= 3 && H % 2 == 1 && W % 2 == 1){
    A[H - 2][W - 2] = 0;
    A[H - 1][W - 2] = 1;
    A[H - 2][W - 1] = 1;
    A[H - 1][W - 1] = 1;
    ans += 2;
  }
  cout << ans << endl;
  for (int i = 0; i < H; i++){
    for (int j = 0; j < W; j++){
      cout << A[i][j];
      if (j < W - 1){
        cout << ' ';
      }
    }
    cout << endl;
  }
}