using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Masukan nilai : ");

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

        if (nilai<2)

        {

            Console.WriteLine("Nilai salah");

            Console.Write("Masukan nilai : ");

            nilai = Convert.ToInt32(Console.ReadLine());

        }

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

            for (int j =1 ; j <= (nilai*4)-3; j++){

                if (i==j||i+j==nilai * 2 || j==(((nilai*4)-3)+1)/2 ){

                    Console.Write("*");

                }

                else if (i+j==((nilai*4)-3)+1){

                    Console.Write("*");

                }

                else {

                    Console.Write(" ");

                }

                }

                Console.WriteLine("");

        }

    }

}