using System;

​

​

public class Program

{

​

    public static void Main()

    {

        Console.WriteLine(DrawTriangle(13));

    }

​

    /*

    / Return isosceles triangle as lines to console

    / Parameters:

    /       _BaseWidth - positive even number as triangle base width

    */

    public static string DrawTriangle(int _BaseWidth)

    {

        if (_BaseWidth % 2 == 0 || _BaseWidth <= 0)

        {  

            throw new Exception("Not a positive even number");

        }

        string _Output = string.Empty;

​

        return _Output;

    }

​

​

    /**

     * HINT:

     * 

     * Repeat character - new String('*', _Count)

     * New line - "\r\n"

     * 

     * 

       *

      ***

     *****

     * */

}

​