#include <bits/stdc++.h>
using namespace std;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int n, m;
    cin >> n >> m;
    vector<vector<int>> a(n, vector<int>(m));
    for (int i = 0; i < n; i += 2)
        a[i][0] = 1;
    for (int j = 0; j < m; j += 2)
        a[0][j] = 1;
    if ((n % 2) * (m % 2) == 0)
        a[n - 1][m - 1] = 1;
    int c = 0;
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j)
            c += a[i][j];
    cout << c << "\n";
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j)
            cout << a[i][j] << " \n"[j + 1 == m];
    return 0;
}