//#startut
//10
//30
//20
//30

class Vader {
	Int a (){
  		return 10
	}
	Int b (){
		return 30
	}
}

class Luke extends Vader {
	Int a (){
		return 20
	}
}

{
	Vader v = new Vader();
	printInt(v.a());
	printInt(v.b());
	Luke l = new Luke();
	printInt(l.a());
	printInt(l.b());
}