using System;

public class Program

{

    public static void Main()

    {

        int i,j,n;

        Console.WriteLine("insert a number :");

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

        for (i=0;i<=n;i++)

           {

            for (j=0;j<n-i;j++)

                Console.Write("{0,2}",i+1);

            Console.WriteLine();

           }

    }

}