#define _USE_MATH_DEFINES

#include <iostream>		//cin, cout
#include <vector>		//vector
#include <algorithm>	//sort,min,max,count
#include <string>		//string,getline, to_string
#include <cstdlib>		//abs(int)
#include <utility>		//swap, pair
#include <deque>		//deque
#include <climits>		//INT_MAX
#include <bitset>		//bitset
#include <cmath>		//sqrt, ceil. M_PI, pow, sin
#include <ios>			//fixed
#include <iomanip>		//setprecision
#include <sstream>		//stringstream
#include <numeric>		//gcd, assumlate
#include <random>		//randam_device
#include <limits>		//numeric_limits
#include <time.h>       //tm

using namespace std;
constexpr int64_t D_MOD = 1000000007;
constexpr int64_t F_MOD = 998244353;


int main() {

    int N, K;
    cin >> N >> K;

    char A;
    string temp;

    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            cin >> A;
            for (int k = 0; k < K; k++) {
                temp.push_back(A);
            }
        }
        for (int j = 0; j < K; j++) {
            cout << temp << endl;
        }
        temp.clear();
    }

    return 0;

}