Kaspichania Boats

using System;

namespace KaspichaniaBoats
{
    class KaspichaniaBoats
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            int width = n * 2 + 1;
            int height = 6 + ((n - 3) / 2) * 3;
            int k = n-1;
            int m = 0;
            int p = 1;

            for (int i = 0; i < height; i++)
            {
                if (i == 0)
                {
                    Console.Write(new string('.', n));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', n));
                    Console.WriteLine();
                }
                else if (i > 0 && i < n)
                {
                    Console.Write(new string('.', k));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', m));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', m));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', k));
                    Console.WriteLine();
                    k--;
                    m++;
                }
                else if (i == n)
                {
                    Console.Write(new string('*', width));
                    Console.WriteLine();
                }
                else if (i > n-1 && i < height-1)
                {
                    Console.Write(new string('.', p));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', m-1));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', m-1));
                    Console.Write(new string('*', 1));
                    Console.Write(new string('.', p));
                    Console.WriteLine();
                    p++;
                    m--;
                }
                else if (i == height-1)
                {
                    Console.Write(new string('.', p));
                    Console.Write(new string('*', width - 2*p));
                    Console.Write(new string('.', p));
                    Console.WriteLine();
                }
            }
        }
    }
}