for for for for

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

namespace ConsoleApplication22
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            Console.WriteLine("{0}{1}{0}", new string('.', n - 1) , new string('*', 1)) ;
            int od = n - 2;
            int id = 1;
            for (int i = 1; i <= n - 1 ; i++ )
            {
                Console.WriteLine("{0}*{1}*{0}" , new string('.',od) , new string('.', id));
                od--;
                id += 2;
            }
          Console.WriteLine(new string('*', n * 2 -1));
          for (int i = 1; i <= n / 4; i++)
          {
              Console.WriteLine('*' + new string('.', n * 2 - 3) + '*');
          }
            for (int i =1; i <= n/2 ;i++)
            {
                Console.WriteLine("*{0}{1}{0}*", new string('.', n / 2), new string('*', n - 3));
            }
            for (int i = 1; i <= n / 4; i++)
            {
                Console.WriteLine('*' + new string('.', n * 2 - 3) + '*');
            }

            Console.WriteLine(new string('*',n*2-1));
        }
    }
}