abstract class Interface {
  void set implementedConcreteSetter(int value) {}
  void set implementedAbstractSetter(int value);
  void set declaredConcreteImplementsConcreteSetter(int value) {}
  void set declaredAbstractImplementsConcreteSetter(int value) {}
  void set declaredConcreteImplementsAbstractSetter(int value);
  void set declaredAbstractImplementsAbstractSetter(int value);
}

abstract class AbstractClass implements Interface {
  void set declaredConcreteSetter(int value) {}
  void set declaredAbstractSetter(int value);
  void set declaredConcreteImplementsConcreteSetter(int value) {}
  void set declaredAbstractImplementsConcreteSetter(int value);
  void set declaredConcreteImplementsAbstractSetter(int value) {}
  void set declaredAbstractImplementsAbstractSetter(int value);
}

main() {}