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

int main() {
    int N, K;
    cin >> N >> K;
    vector<string> S(N);
    for (int i = 0; i < N; i++) {
        cin >> S[i];
    }

    vector<vector<char>> A(N * K, vector<char>(N * K));
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            for (int k = 0; k < K; k++) {
                for (int l = 0; l < K; l++) {
                    A[i * K + k][j * K + l] = S[i][j];
                }
            }
        }
    }

    for (int i = 0; i < N * K; i++) {
        for (int j = 0; j < N * K; j++) {
            cout << A[i][j];
        }
        cout << endl;
    }
}