using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	
	namespace hello
	{
		class Program
		{
			static void Main(string[] args)
			{
				var str = "Heaveno World";
				for (var i = 0; i <= 666; i++)
					str = GodVersusSatan(str);
				Console.WriteLine(str);
			}
	
			static string GodVersusSatan(string s)
			{
				if (s.Contains("Hell"))
					return God(s);
				else if (s.Contains("Heaven"))
					return Satan(s);
				return s;
			}
	
			static string God(string s)
			{
				return s.Replace("Hell", "Heaven");
			}
	
			static string Satan(string s)
			{
				return s.Replace("Heaven", "Hell");
			}
		}
	}