using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter range");

        int n =Convert.ToInt32(Console.ReadLine());

        int i, j,k,l;

              for(i=1; i<=n; i++)      

                 {          

                  for(j=1; j<=n-i; j++)      

                     {      

                       Console.Write(" ");      

                     }      

                      for(k=1;k<=i;k++)      

                      {      

                         Console.Write(k);      

                        }      

                  for(l=i-1;l>=1;l--)      

                  {      

                      Console.Write(l);      

                   }      

     Console.Write("\n");      

     }       

  }  

}