import java.util.Scanner;

public class Exercise4v2 {
    public static void main(String [] args) {
        Scanner feed = new Scanner(System.in);

        // Asks user for dimensions of square
        System.out.println("Input desired height of the square");
        int width = feed.nextInt();
        int lines = width;

        do {
            for(int a=0; a<width; a++) {
            System.out.print("X");
            }

        width=0;
        }while(width>0);
        width=lines;
        System.out.println();
        System.out.print("X");
        //System.out.println(lines + "lines arvo");
        //System.out.print(width + "width arvo");

      while(lines>2) {

       do {
            for(int a=2; a<width; a++) {
            System.out.print(" ");
            }
        //System.out.print("w="+width);
        width--;
        }while(width>2);

         if(width==2) {
            System.out.print("X");
            System.out.println();

         }
         //System.out.print("w="+width);
         System.out.print("l="+lines);
         lines--;
      }








    }
}