#include<iostream>
#include<vector>
using namespace std;
int main()
{
  int n,k;
  cin >> n >> k;
  vector<vector<char>>grid(n,vector<char>(n));
  for(int i=0;i<n;i++){
    string s;
    cin >> s;
    for(int j=0;j<n;j++)grid[i][j]=s[j];
  }
  for(int i=0;i<n;i++)for(int ii=0;ii<k;ii++){
      for(int j=0;j<n;j++)for(int jj=0;jj<k;jj++)cout << grid[i][j];
      cout << endl;
    }
}