using System;
using System.Reflection;

class Base
{
	public static Base Create(int args)
	{
		Console.WriteLine("Creating Base with args = {0}", args);
		return new Base();
	}
}

class Utility
{
	public static Base Create(string name, int args)
	{
		var type = typeof(Utility).Module.GetType(name);
		return Create(type, args);
	}
	
	public static Base Create(Type type, int args)
	{
		var method = type.GetMethod("Create", BindingFlags.Public|BindingFlags.Static);
		return method.Invoke(null, new object[]{args}) as Base;
	}
}

class Derived: Base
{
	new public static Base Create(int args)
	{
		if (args <= 0)
		{
			return Utility.Create(typeof(Derived).BaseType, args);
		}
		else
		{
			Console.WriteLine("Creating Derived with args = {0}", args);
			return new Derived() as Base;
		}
	}
}

public class Test
{
	public static void Main()
	{
		Utility.Create("Base", 1234);
		Utility.Create("Derived", 0);
		Utility.Create("Derived", 1);
	}
}