using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RhombusofStars
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            for (int rows = 1; rows <= n; rows++)
            {
                for (int col = 1; col <= n - rows; col++)
                {
                    Console.Write(" ");
                }
                Console.Write("*");
                for (int col = 1; col <= rows - 1; col++)
                {
                    Console.Write(" *");
                }
                Console.WriteLine();
            }
            for (int rows = 2; rows <= n; rows++)
            {
                for (int col = 1; col <= rows-1; col++)
                {
                    Console.Write(" ");
                }
                Console.Write("*");
                for (int col = 1; col <= n-rows; col++)
                {
                    Console.Write(" *");
                }
                Console.WriteLine();

            }
        }
    }
}