// @dart = 2.9
abstract class A {
  num get getterFromGetter;
  set setterFromSetter(num value);
  set getterFromSetter(num value);
  num get setterFromGetter;
  num get getterFromGetterWithSetterConflict;
  set getterFromGetterWithSetterConflict(num);
  num get setterFromSetterWithGetterConflict;
  set setterFromSetterWithGetterConflict(num);
}

abstract class B {
  int get getterFromGetter;
  set setterFromSetter(int value);
  int get setterFromGetter;
  int get setterFromSetterWithGetterConflict;
  set getterFromGetterWithSetterConflict(int value);
  set getterFromSetter(int value);
}

abstract class C extends A {
  get getterFromGetter;
  set setterFromSetter(value);
  get getterFromSetter;
  set setterFromGetter(value);
  get getterFromGetterWithSetterConflict;
  set setterFromSetterWithGetterConflict(value);
}

abstract class D extends A implements B {
  get getterFromGetter;
  set setterFromSetter(value);
  get getterFromSetter;
  set setterFromGetter(value);
  get getterFromGetterWithSetterConflict;
  set setterFromSetterWithGetterConflict(value);
}

abstract class E implements A {
  get getterFromGetter;
  set setterFromSetter(value);
  get getterFromSetter;
  set setterFromGetter(value);
  get getterFromGetterWithSetterConflict;
  set setterFromSetterWithGetterConflict(value);
}

abstract class F implements A, B {
  get getterFromGetter;
  set setterFromSetter(value);
  get getterFromSetter;
  set setterFromGetter(value);
  get getterFromGetterWithSetterConflict;
  set setterFromSetterWithGetterConflict(value);
}

main() {}