using System;

public class Program

{

    public static void Main()

    {

​

               Console.WriteLine("Enter NUMBER :"); 

        int n  = int.Parse(Console.ReadLine());

    // BALA 

        for (int L = 1; L <= n ; L++){

            for(int H = 1 ; H <= n - L ; H++) {

                Console.Write(" ");

            }

            for(int P  = 1 ; P  <= (2 * L - 1) ; P++) {

                Console.Write('0');

            }

        Console.WriteLine();

        }

        //paeen

        for (int L = n ; L > 0 ; L--){

            for(int H = 1 ; H <= n - L ; H++) {

                Console.Write(" ");

            }

            for(int P  = 1 ; P  <= (2 * L - 1) ; P++) {

                Console.Write('0');

            }

        Console.WriteLine();

        }   }

}