using System;

public class Program

{

    public static void Main()

    {

    //  Console.Write("Nhập S: ");

        //int meomeo = Convert.ToInt32(Console.ReadLine());

        for (int i=1;i<=10;i++){

            for (int j=0;j<10-i;j++) Console.Write(" ");    

            Console.Write(i>=10 ? i-10 : i);

            if (i>1){

            for (int k=i+1;k<=(i*2-1);k++) Console.Write(k>=10 ? k-10 : k); 

            for (int k=(i*2-2);k>=i+1;k--) Console.Write(k>=10 ? k-10 : k);

            Console.Write(i>=10 ? i-10 : i);

            }

            Console.WriteLine("");

        }

    }

}