Снежинка :Snowflake

using System;

namespace Снежинка
{
    class Program
    {
        static void Main(string[] args)
        {


            var n = int.Parse(Console.ReadLine());

            int hight = 2 * n + 1;
            int widht = 2 * n + 3;

            int dotTopCount = n;
            string dotTop = new string('.', dotTopCount);
            Console.WriteLine($"*{dotTop}*{dotTop}*");
                                    //     UP

            for (int row = 1; row < n - 1; row++)
            {
                for (int col = n  - row; col < n ; col++)
                {
                    Console.Write(".");
                }
                Console.Write("*");


                for (int colTwo = 1+row; colTwo <= n; colTwo++)
                {
                    Console.Write(".");
                }

                Console.Write("*");

                for (int colTwo = 1 + row; colTwo <= n; colTwo++)
                {
                    Console.Write(".");
                }

                Console.Write("*");

                for (int col = n - row; col < n; col++)
                {
                    Console.Write(".");
                }

                Console.WriteLine();
            }

            //     MIDLE

            int starsMidTwoCount = 5;
            string starsMidTwo = new string('*', starsMidTwoCount);

            int dotsMidTwoCount = (widht - starsMidTwoCount) / 2;
            string dotsMidTwo = new string('.', dotsMidTwoCount);

            Console.WriteLine($"{dotsMidTwo}{starsMidTwo}{dotsMidTwo}");


            int starsMidCount = widht ;
            string starsMid = new string('*', starsMidCount);
            Console.WriteLine($"{starsMid}");


            Console.WriteLine($"{dotsMidTwo}{starsMidTwo}{dotsMidTwo}");

                                    //     MIDLE

            for (int row = n - 1; row > 1; row--)
            {
                for (int col = n - row + 1; col < n; col++)
                {
                    Console.Write(".");
                }
                Console.Write("*");


                for (int colTwo = 1 + row - 1; colTwo <= n; colTwo++)
                {
                    Console.Write(".");
                }

                Console.Write("*");

                for (int colTwo = 1 + row - 1; colTwo <= n; colTwo++)
                {
                    Console.Write(".");
                }

                Console.Write("*");

                for (int col = n - row + 1; col < n; col++)
                {
                    Console.Write(".");
                }

                Console.WriteLine();
            }

                                    //     DOWN


            Console.WriteLine($"*{dotTop}*{dotTop}*");
        }
    }
}

//     3    *...*...*
//          .*..*..*.
//          ..*****..
//          *********
//          ..*****..
//          .*..*..*.
//          *...*...*

//     5  *.....*.....*
//        .*....*....*.
//        ..*...*...*..
//        ...*..*..*...
//        ....*****....
//        *************
//        ....*****....
//        ...*..*..*...
//        ..*...*...*..
//        .*....*....*.
//        *.....*.....*