#include <bits/stdc++.h>
// clang-format off
using namespace std; using ll=long long; using ull=unsigned long long; using pll=pair<ll,ll>; const ll INF=4e18;
void print0(){}; template<typename H,typename... T> void print0(H h,T... t){cout<<h;print0(t...);}
void print(){print0("\n");}; template<typename H,typename... T>void print(H h,T... t){print0(h);if(sizeof...(T)>0)print0(" ");print(t...);}
void perr0(){}; template<typename H,typename... T> void perr0(H h,T... t){cerr<<h;perr0(t...);}
void perr(){perr0("\n");}; template<typename H,typename... T>void perr(H h,T... t){perr0(h);if(sizeof...(T)>0)perr0(" ");perr(t...);}
void ioinit() { cout<<fixed<<setprecision(15); cerr<<fixed<<setprecision(6); ios_base::sync_with_stdio(0); cin.tie(0); }
#define debug1(a) { cerr<<#a<<":"<<a<<endl; }
#define debug2(a,b) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<endl; }
#define debug3(a,b,c) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<endl; }
#define debug4(a,b,c,d) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<" "<<#d<<":"<<d<<endl; }
// clang-format on

int main() {
    ioinit();
    ll N, K;
    cin >> N >> K;
    vector<vector<char>> tbl(N, vector<char>(N));
    for (ll r = 0; r < N; r++) {
        for (ll c = 0; c < N; c++) {
            cin >> tbl[r][c];
        }
    }
    ll NK = N * K;
    vector<vector<char>> tbl1(NK, vector<char>(NK));
    for (ll r = 0; r < N; r++) {
        for (ll c = 0; c < N; c++) {
            for (ll i = r * K; i < r * K + K; i++) {
                for (ll j = c * K; j < c * K + K; j++) {
                    tbl1[i][j] = tbl[r][c];
                }
            }
        }
    }
    for (ll r = 0; r < NK; r++) {
        for (ll c = 0; c < NK; c++) {
            print0(tbl1[r][c], c == NK - 1 ? "\n" : "");
        }
    }
    return 0;
}