class ConcreteClass implements Interface {
  void declaredAbstractImplementsAbstractMethod();
  void declaredAbstractImplementsConcreteMethod();
  void declaredAbstractMethod();
  void declaredConcreteImplementsAbstractMethod() {}
  void declaredConcreteImplementsConcreteMethod() {}
  void declaredConcreteMethod() {}
}

class Interface {
  void declaredAbstractImplementsAbstractMethod();
  void declaredAbstractImplementsConcreteMethod() {}
  void declaredConcreteImplementsAbstractMethod();
  void declaredConcreteImplementsConcreteMethod() {}
  void implementedAbstractMethod();
  void implementedConcreteMethod() {}
}

main() {}