/*
Kyle Scopa
Write a program that requests an integer n and prints the following X picture.

Sample run:
Enter a positive integer: 5
Output:

 X       X
  X     X
   X   X
    X X
     X
    X X
   X   X
  X     X
 X       X

*/
    import java.util.*;


public class PrintX
{
    public static void main(String args[])
    {
        int inp = 0;
        int inc = 0;
        int c = 0;


        Scanner input = new Scanner(System.in);
        inp = input.nextInt();

        //upper left..
        for (int i=1; i<inp; i++){
            for(int check= 1; check<i; check++){
                System.out.print(" ");
            }
            System.out.println("X");
            for (int l = (inp*2)-3-2*inc;l > 0;l--){
                System.out.print(" ");
        }
                System.out.printlx("x");
                inc++;
            }



    //middle x
    for (int p = 1; p <inp; p++){
        System.out.print(" ");
    }
    System.out.println("x");
    //lower left x
     for (int q = inp; q>1; q--){
        for(int check1 = 2; check1<q; check1++){
            System.out.print(" ");

        }

        System.out.println("x");




        }

    }
}