Christmas tree

using System;

namespace Test2
{
    class MainClass
    {
        public static void Main (string[] args)
        {
            int n = int.Parse (Console.ReadLine ());
            for (int i = 0; i < n; i++) {
                var stars = new string ('*', i);
                var spaces = new string (' ', n - i);
                Console.Write (spaces);
                Console.Write (stars);
                Console.Write (" | ");
                Console.Write (stars);
                Console.WriteLine ();
            }

        }
    }
}