zadanie c# - odwrocona litera N

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
{
    const char CHAR = '*';
    static void Star() {Console.Write(CHAR);}
    static void Starno() {Console.Write('◈');}
    static void StarLn() {  Console.WriteLine(CHAR); }
    static void Space() { Console.Write(" ");}
    static void SpaceLn() { Console.WriteLine(" ");}
    static void NewLine() { Console.WriteLine();}


    public static void LiteraX(int n)
    {
        if (n < 3) throw new ArgumentException("zbyt mały rozmiar");
        if (n % 2 == 0) n = n + 1;

        //górna połówka
        for (int i = 0; i < n-1 ; i++)
        {
            Star();
            for (int j = 2; j < n  -  i; j++)
            {
                Space();
            }
            Star();
            for (int j =  i+2; j > 2 ; j--)
            {
                Space();
            }
            StarLn();


        }

    }


    public static void Main(string[] args)
    {

        LiteraX(18);

    }
}
}