#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ull = unsigned long long;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const vector<int> dx = {0,0,1,-1};
const vector<int> dy = {1,-1,0,0};
const ll INF = 1e18;
const ll inf = 1e8;
const ll MOD = 998244353;


int main(){
    int n,k;
    cin >> n >> k;
    vector<string> ans;
    for(int i = 0; i < n; i++){
        string s = "";
        for(int j = 0; j < n; j++){
            char a;
            cin >> a;
            for(int p = 0; p < k; p++) s += a;
        }

        for(int j = 0; j < k; j++) ans.push_back(s);
    }

    for(auto i : ans) cout << i << endl;
}