Sand-glass

using System;
//Input
//The input data should be read from the console.
//You have an integer number N (always odd number) showing the height of the sand clock.
//The input data will always be valid and in the format described. There is no need to check it explicitly.
//Output
//The output should be printed on the console.
//You should print the hourglass on the console. Each row can contain only the following characters: “.” (dot) and “*” (asterisk).
//As shown in the example: the middle row must contain only one ‘*’ and all other symbols must be “.”.
//Every next row (up or down from the middle one) must contain the same number of ‘*’ as the previous one plus two. You should only use “.” to
//fill-in the rows, where necessary.

class Program
{
    static void Main()
    {
        int height = int.Parse(Console.ReadLine());

        bool direction = true;
        for (int i = 0, reverse = height - 1; i < height; i++, reverse--) //liness
        {
            for (int j = 1; j <= height; j++) //rows
            {
                if (i > height / 2)
                {
                    direction = false;
                }
                if (direction == true)
                {
                    if (i >= j)
                    {
                        Console.Write(".");
                    }
                    else if (j + i > height)
                    {
                        Console.Write(".");
                    }
                    else
                    {
                        Console.Write("*");
                    }
                }
                if (direction == false)
                {
                    if (reverse >= j)
                    {
                        Console.Write(".");
                    }
                    else if (reverse + j > height)
                    {
                        Console.Write(".");
                    }
                    else
                    {
                        Console.Write("*");
                    }
                }
            }
            Console.WriteLine();
        }
    }
}