Diamond

using System;
class DiamondTrolls
{
    static void Main()
    {
        int N = int.Parse(Console.ReadLine());
        int width = (N * 2) + 1;
        int height = (6 + ((N - 3) / 2) * 3);
        int widthDiamond = N;
        int dot = ((width - N) / 2) - 1; // dobavqmi - i
        int dotTwo = ((width - N) / 2);
        int heightFirstPart = (height / 3) - 1;

        //firstPart
        Console.Write(new string('.', dotTwo));
        Console.Write(new string('*', N));
        Console.WriteLine(new string ('.', dotTwo));

        for (int i = 0; i < heightFirstPart; i++)
        {
            Console.Write(new string ('.', dot - i));
            Console.Write("*");
            Console.Write(new string ('.', dot + i));
            Console.Write("*");
            Console.Write(new string ('.', dot + i));
            Console.Write("*");
            Console.WriteLine(new string ('.', dot - i));
        }

        Console.WriteLine(new string ('*', width));

        //secondPart

        int dotSecondPart = (width - 5) / 2;
        for (int i = 0; i < N - 1; i++)
        {
            Console.Write(new string ('.', 1 + i));
            Console.Write("*");
            Console.Write(new string ('.', dotSecondPart - i));
            Console.Write("*");
            Console.Write(new string('.', dotSecondPart - i));
            Console.Write("*");
            Console.WriteLine(new string('.', 1 + i));
        }

        Console.Write(new string ('.', (width - 1) / 2));
        Console.Write("*");
        Console.WriteLine(new string('.', (width - 1) / 2));
    }
}