using System;

namespace _06._Rhombus_of_Stars
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int parameters = int.Parse(Console.ReadLine());

            for (int row = 1; row <= parameters; row++)
            {
                for (int n = 1; n <= parameters; n++)
                {
                    Console.Write(" ");
                }
                Console.Write("*");
                for (int n = 1; n < row; n++)
                {
                    Console.Write(" *");
                }
                Console.WriteLine();
            }
            int startt = parameters - 1;
            for (int row = startt; row > 0; row--)
            {
                for (int i = 1; i <= parameters; i++)
                {
                    Console.Write(" ");
                }
                Console.Write("*");
                for (int i = 1; i < row; i++)
                {
                    Console.Write(" *");
                }
                Console.WriteLine();
            }


        }
    }
}