Kaspichania Boats

using System;

namespace Caspichania
{
    class caspichan
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            int dotCount = n;
            int innerDotCount = 0;
            int width = n * 2 + 1;
            int height = 6 + ((n - 3) / 2) * 3;
            for (int i = 1; i <= height; i++)
            {
                string outerDots = new string('.', dotCount);
                string innerDots = new string('.', innerDotCount);
                if (i != n + 1&&i!=height)
                {
                    Console.Write(outerDots);
                    if (i == 1) Console.Write('*');
                    else
                        if (i == 2) Console.Write("***");
                        else
                        {
                            Console.Write('*');
                            Console.Write(innerDots);
                            Console.Write('*');
                            Console.Write(innerDots);
                            Console.Write('*');
                        }
                    Console.Write(outerDots);
                }
                if(i==n+1) {string fullStars = new string('*',width);Console.Write(fullStars);}
                if (i == height)
                {
                    Console.Write(outerDots);
                    string lastStars = new string('*', width - (2 * dotCount));
                    Console.Write(lastStars);
                    Console.Write(outerDots);
                }
                if(i<n) {dotCount--;}
                if(i>n+1) {dotCount++;}
                if(i>1&&i<n) {innerDotCount++;}
                if(i>n+1) {innerDotCount--;}
                Console.WriteLine();

            }
        }
    }
}