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

namespace problem_03Sunlight
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());

            int outerDots = n+2;
            int innerDots = 1;
            int asterisks = 0;
            Console.WriteLine("{0}*{0}", new string('.', outerDots));


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

            for (int i = 0; i < n/2; i++)
            {
                asterisks = n;
                innerDots = n;
                outerDots = n;
                Console.WriteLine("{0}{1}{2}", new string('.', outerDots), new string('*', asterisks), new string('.', innerDots));
            }
            asterisks = n * 3;
            Console.WriteLine("{0}", new string('*', asterisks));

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

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

            outerDots = n + 2;
            Console.WriteLine("{0}*{0}", new string('.', outerDots));

        }
    }
}