#include <iostream>
#include <algorithm>

using namespace std;

int main()
{
    int n, m;
    cin >> n >> m;

    int w[n], p[n];
    for(int i = 0; i < n; ++i){
        cin >> w[i] >> p[i];
    }

    int a[m][n];
    for(int i = 0; i < n; ++i){
        a[0][i] = 0;
    }
    for(int i = 0; i < m; ++i){
        a[i][0] = 0;
    }

    for(int i = 0; i < m; ++i){
        for(int j = 0; i < n; ++i){
            cout << a[i][j];
        }
        cout << endl;
    }
    return 0;
}