import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int n = Integer.parseInt(sa[0]);
		int k = Integer.parseInt(sa[1]);
		char[][] a = new char[n][n];
		for (int i = 0; i < n; i++) {
			a[i] = br.readLine().toCharArray();
		}
		br.close();

		for (int i = 0; i < n; i++) {
			for (int j = 0; j < k; j++) {
				StringBuilder sb = new StringBuilder();
				for (int i2 = 0; i2 < n; i2++) {
					for (int j2 = 0; j2 < k; j2++) {
						sb.append(a[i][i2]);
					}
				}
				System.out.println(sb.toString());
			}
		}
	}
}