using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static string[] SList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => ReadLine()).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, k) = (c[0], c[1]);
        var map = SList(n);
        for (var i = 0; i < n; ++i)
        {
            var s = new char[n * k];
            for (var j = 0; j < n; ++j) for (var y = 0; y < k; ++y) s[j * k + y] = map[i][j];
            var si = string.Concat(s);
            for (var x = 0; x < k; ++x) WriteLine(si);
        }
    }
}