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

namespace _03.SunLight
{
    class SunLight
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());

            //  line
                var dotsUpper = new string('.',((n*3)-1)/2);
                var starUpper = '*';
                Console.WriteLine("{0}{1}{0}", dotsUpper, starUpper);

            // sun  upper part
            for (int i = 1; i <=n-1; i++)
            {
                var outerDot= new string('.',i); // 0
                var stars = '*'; //1
                var innerDotsCount = ((n*3) - 3 - (i*2))/2; //2
                var innerDots= new string('.',innerDotsCount);
                Console.WriteLine("{0}{1}{2}{1}{2}{1}{0}",outerDot,stars,innerDots);
            }

            //  middle part
            for (int i = 1; i <=n; i++)
            {
                var dot = new string('.',n);
                var stars = new string('*',n);

                if (i == n/2 + 1)
                {
                    Console.WriteLine(new string('*', n*3));
                }
                else
                {
                    Console.WriteLine("{0}{1}{0}", dot, stars, dot);
                }
            }
            //  bottom part
            for (int i = n-1; i>=1; i--)
            {
                var outerDot = new string('.', i);
                var stars = '*';
                var innerDots = new string('.',((n*3-3)-i*2)/2);

                Console.WriteLine("{0}{1}{2}{1}{2}{1}{0}", outerDot, stars, innerDots);
            }
            // bottom line
            Console.WriteLine("{0}{1}{0}", dotsUpper, starUpper);
        }
    }
}