abstract class AbstractClass extends AbstractSuper {
  void declaredAbstractExtendsAbstractMethod();
  void declaredAbstractExtendsConcreteMethod();
  void declaredAbstractMethod();
  void declaredConcreteExtendsAbstractMethod() {}
  void declaredConcreteExtendsConcreteMethod() {}
  void declaredConcreteMethod() {}
}

abstract class AbstractSuper {
  void declaredAbstractExtendsAbstractMethod();
  void declaredAbstractExtendsConcreteMethod() {}
  void declaredConcreteExtendsAbstractMethod();
  void declaredConcreteExtendsConcreteMethod() {}
  void extendedAbstractMethod();
  void extendedConcreteMethod() {}
}

main() {}