using System;

class Foo {
	public virtual void voo () {
		Console.WriteLine("Foo::voo");
	}
	
	public void noo () {
		Console.WriteLine("Foo::noo");
	}
}

class Boo : Foo {
	public override void voo () {
		Console.WriteLine("Boo::voo");
	}
	
	public void noo () {
		Console.WriteLine("Boo::noo");
	}
}

public class Test
{
	public static void Main()
	{
		Foo ffoo = new Foo(), fboo = new Boo();
		Boo bboo = new Boo();
		
		ffoo.voo(); // Foo as Foo: Foo::voo
		ffoo.noo(); // Foo as Foo: Foo::noo
		fboo.voo(); // Boo as Foo: Boo::voo
		fboo.noo(); // Boo as Foo: Foo::noo
		bboo.voo(); // Boo as Boo: Foo::voo
		bboo.noo(); // Boo as Boo: Foo::noo
	}
}