HouseWithAWindow

using System;

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

			string dotRoofTop = new string('.', n - 1);
			string asterisk = "*";
			Console.WriteLine(dotRoofTop + asterisk + dotRoofTop);

			for(int i = 0; i < n - 1; i++)
			{
				string dotRoofOutside = new string('.', n - 2 - i);
				string dotRoofInside = new string('.', 1 + 2 * i);
				Console.WriteLine(dotRoofOutside + asterisk + dotRoofInside + asterisk + dotRoofOutside);
			}

			Console.WriteLine(new string('*', n * 2 - 1));

			for(int i = 0; i < n / 4; i++)
			{
				string dotBaseUpper = new string('.', n * 2 - 3);
				Console.WriteLine(asterisk + dotBaseUpper + asterisk);
			}

			for(int i = 0; i < n / 2; i++)
			{
				string dotBaseMiddle = new string('.', n / 2);
				string asteriskBaseMiddle = new string('*', n - 3);
				Console.WriteLine(asterisk + dotBaseMiddle + asteriskBaseMiddle + dotBaseMiddle + asterisk);
			}

			for(int i = 0; i < n / 4; i++)
			{
				string dotBaseUpper = new string('.', n * 2 - 3);
				Console.WriteLine(asterisk + dotBaseUpper + asterisk);
			}

			Console.WriteLine(new string('*', n * 2 - 1));

		}
	}
}