/* package whatever; // don't place package name! */

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        int tmpSize = 9; //default
        final Scanner scanner = new Scanner(System.in);
        if (scanner.hasNextInt()) {
            tmpSize = scanner.nextInt();
        }
        scanner.close();

        final int size = tmpSize;
        for (int i = 0 ; i < size; i++) {
            for (int j = 0; j < size; j++) {
                System.out.print(j == i || j == size - i - 1 ? 'x' : ' ');
            }
            System.out.println();
        }
    }
}