#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

int main () {
    int n,m,temp;
    vector<int> a[205];
    cin >> n >> m;
    for (int i=0; i<n; i++) {
        a[i].resize(m);
        for (int j=0; j<m; j++) {
            cin >> temp;
            a[i].push_back(temp);
        }
        sort(a[i].begin(),a[i].end());
    }
    sort(a,a+n);
    for (int i=0; i<n; i++) {
        for (int j=0; j<m; j++) {
            cout << a[i][j] << " ";
        }
        cout << endl;
    }
}