PlaneProblem

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

namespace DrawPlane
{
    class Program
    {
        static void Main(string[] args)
        {
                int n = int.Parse(Console.ReadLine());
            int outerDots = n + (n / 2);


            Console.Write(new string('.', outerDots));
            Console.Write(new string('*', 1));
            Console.WriteLine(new string('.', outerDots));

            int nextOuterDots = n + (n / 3);
            int innerDots = 1;
            int asterisks = 1;

            for (int i = 0; i < n - 1; i++)
            {
                string nextOuterDotsString = new string('.', nextOuterDots);
                string innerDotsString = new string('.', innerDots);
                string asterisksString = new string('*', asterisks);
                Console.WriteLine(nextOuterDotsString + asterisksString + innerDotsString + asterisksString + nextOuterDotsString);
                nextOuterDots--;
                innerDots += 2;
            }
            int nekviSiDots = 1;
            int vatreshniDots = 11;
            string anotherNextOuterDotsStringggg = new string('.', nekviSiDots);
            string asteriksiMasteriksi = new string('*', asterisks);
            string vatreshniDotsString = new string('.', vatreshniDots);
            Console.WriteLine(anotherNextOuterDotsStringggg + asteriksiMasteriksi + vatreshniDotsString + asteriksiMasteriksi + anotherNextOuterDotsStringggg);

            int asterisksFour = 1;
            int firstInnerDots = n - 2;
            int secondInnerDotsss = n;
            for (int i = 0; i < n / 3; i++)
            {
                string asterisksFourString = new string('*', asterisksFour);
                string firstInnerDotsString = new string('.', firstInnerDots);
                string secondInerDotrsssString = new string('.', secondInnerDotsss);
                Console.WriteLine(asterisksFourString + firstInnerDotsString + asterisksFourString + secondInerDotrsssString + asterisksFourString + firstInnerDotsString + asterisksFourString);

                firstInnerDots -= 2;
            }
            int posledniteeAsterisks = 1;
            int innerrrrrrrDots = n;
            int inerDotsKoitoSaEinicaaaa = 1;

            string posledniteeAsterisksString = new string('*', posledniteeAsterisks);
            string innerrrrDotsString = new string('.', innerrrrrrrDots);
            string inerDotsKoitoSaEdinicaaaaString = new string('.', inerDotsKoitoSaEinicaaaa);

            Console.WriteLine(posledniteeAsterisksString + inerDotsKoitoSaEdinicaaaaString + posledniteeAsterisksString + inerDotsKoitoSaEdinicaaaaString + posledniteeAsterisksString + innerrrrDotsString + posledniteeAsterisksString + inerDotsKoitoSaEdinicaaaaString + posledniteeAsterisksString + inerDotsKoitoSaEdinicaaaaString + posledniteeAsterisksString);

            int finishOuterDots = n - 1;
            int finishAsterisks = 1;
            int finishInnerDots = n;
            for (int i = 0; i < n - 1; i++)
            {

            }
            string finishOuterDotsString = new string('.', finishOuterDots);
            string finishAsterisksString = new string('*', finishAsterisks);
            string finishInnerDotsString = new string('.', finishInnerDots);

            Console.WriteLine(finishOuterDotsString + finishAsterisksString + finishInnerDotsString + finishAsterisksString + finishOuterDotsString);
            finishInnerDots += 2;
            finishOuterDots--;
            int lastFinalAsterisks = n * 3;
            string lastFinalAsterisksString = new string('*', lastFinalAsterisks);
            Console.WriteLine(lastFinalAsterisksString);

        }
    }
}