#include <bits/stdc++.h>
#define endl '\n'

using namespace std;
using i64 = long long;

int n, m;

int main() {
    ios::sync_with_stdio(false), cin.tie(0);
    cin >> n >> m;
    vector sta(n + 1, vector(m + 1, 0));
    for (int i = 1; i <= m; i++) {
        if (i & 1) {
            sta[1][i] = 1;
        }
    }
    for (int i = 1; i <= n; i++) {
        if (i & 1) {
            sta[i][1] = 1;
        }
    }
    if (m % 2 == 0 || n % 2 == 0) {
        sta[n][m] = 1;
    }
    int cnt = 0;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            if (sta[i][j] == 1) {
                cnt++;
            }
        }
    }
    cout << cnt << endl;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cout << sta[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}