/* -*- coding: utf-8 -*-
 *
 * 1974.cc:  No.1974 2x2 Flipper - 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 */

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

/* main */

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

  int he = h & ~1, we = w & ~1;
  int c = 0;

  for (int i = 0; i < he; i++)
    for (int j = 0; j < we; j++) as[i][j] = 1, c++;

  if (h > 1 && w > 1 && (h & w & 1)) {
    as[h - 2][w - 2] = 0; as[h - 2][w - 1] = 1;
    as[h - 1][w - 2] = 1; as[h - 1][w - 1] = 1;
    c += 2;
  }

  printans(h, w, c);
  return 0;
}