#include <iostream>
#include <vector>
#include <cmath>
#include <map>
#include <set>
#include <iomanip>
#include <queue>
#include <algorithm>
#include <numeric>
#include <deque>
#include <complex>
#include <cassert>

using namespace std;
using ll = long long;

int main(){

    int H, W;
    cin >> H >> W;
    vector<vector<int>> ans(H, vector<int>(W));
    if (H == 1 || W == 1){
        cout << 0 << endl;
    }
    else if (H % 2 == 0 && W % 2 == 0){
        cout << H*W << endl;
        for (int i=0; i<H; i++){
            for (int j=0; j<W; j++) ans[i][j] = 1;
        }
    }
    else if (H % 2 == 0 && W % 2 == 1){
        cout << H*(W-1) << endl;
        for (int i=0; i<H; i++){
            for (int j=0; j<W-1; j++) ans[i][j] = 1;
        }
    }
    else if (H % 2 == 1 && W % 2 == 0){
        cout << (H-1)*W << endl;
        for (int i=0; i<H-1; i++){
            for (int j=0; j<W; j++) ans[i][j] = 1;
        }
    }
    else{
        for (int i=0; i<H; i++){
            for (int j=0; j<W; j++) ans[i][j] = 1;
        }
        if (H > W){
            cout << H * (W-1) << endl;
            for (int i=0; i<W; i++) ans[i][i] = 0;
            for (int i=W; i<H; i++) ans[i][W-1] = 0;
        }
        else{
            cout << (H-1) * W << endl;
            for (int i=0; i<H; i++) ans[i][i] = 0;
            for (int i=H; i<W; i++) ans[H-1][i] = 0;
        }
    }

    for (int i=0; i<H; i++){
        for (int j=0; j<W; j++) cout << ans[i][j] << " ";
        cout << endl;
    }

    return 0;
}