#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
vector<vector<char>> input_grid(long long h, long long w) {

    vector<vector<char>> G(h, vector<char>(w));
    for (ll i = 0; i < h; ++i) {
        for (ll j = 0; j < w; ++j) {
            cin >> G[i][j];
        }
    }

    return G;
}
void solve() {
    ll n,k;
    cin >> n >> k;
    vector<vector<char>> S = input_grid(n,n);

    vector<vector<char>> ans(n*k, vector<char>(n*k));

    for (ll i = 0; i < ans.size(); ++i) {
        for (ll j = 0; j < ans[0].size(); ++j) {
            ans[i][j] = S[i/k][j/k];
        }
    }

    for (ll i = 0; i < ans.size(); ++i) {
        for (ll j = 0; j < ans.size(); ++j) {
            cout << ans[i][j];
        }
        cout << endl;
    }
}

int main() {
    solve();
    return 0;
}