Roklia

using System;



    class Roklq
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());

            Console.WriteLine("{0}{1}{0}", new string('.', n ), new string('*', n));

           int dotsBefore = n;

            for (int i = 1; i < n/2+1; i++)
            {
                dotsBefore = dotsBefore - 2;
                Console.WriteLine("{0}*{1}*{0}", new string('.', dotsBefore), new string('.', n + ((i * 4 - 2))));

            }

            Console.WriteLine("*{0}*{1}*{0}*", new string ('.', n-2), new string ('.', n));


            int dotsFirst = n-2;
            int dotsMiddle = n;
            int dotsBetween = 1;

            for (int i = 1; i < n/2; i++)
            {
                dotsFirst -= 2;


                Console.WriteLine("*{0}*{2}*{1}*{2}*{0}*", new string('.', dotsFirst), new string ('.', dotsMiddle), new string ('.', dotsBetween ));
                dotsBetween += 2;

            }

            int newDots = n;
            for (int i = 1; i < n; i++)
            {
                Console.WriteLine("{0}*{1}*{0}", new string ('.', (n-i)), new string ('.', newDots));

                newDots += 2;
            }

            Console.WriteLine("{0}", new string('*', 3*n));


        }
    }