/* -*- 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 c = 0;
  if (h > 1 && w > 1 && (h & w & 1)) {
    for (int i = 0; i < h; i++) fill(as[i], as[i] + w, 1);
    c = h * w;

    if (h <= w) {
      for (int y = 0, x = 0, d = 1; x < w;) {
	for (int i = 0; i < d; i++) as[y][x++] = 0, c--;
	if (++y >= h) y = 0, d = 2;
      }
    }
    else {
      for (int x = 0, y = 0, d = 1; y < h;) {
	for (int i = 0; i < d; i++) as[y++][x] = 0, c--;
	if (++x >= w) x = 0, d = 2;
      }
    }
  }
  else {
    int he = h & ~1, we = w & ~1;
    for (int i = 0; i < he; i++)
      for (int j = 0; j < we; j++) as[i][j] = 1, c++;
  }

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