class Lunch
{
public:
  Lunch(){}
  virtual ~Lunch(){}

  void feed()
  {
    cooking();
    eating();
    cleaning();
  }
  virtual void cooking()=0;
  virtual void eating()
  {
    cout<<"I am eating,Please don't disturb me\n";
  }
  virtual void cleaning();
};


class MCMeal : public Lunch
{
public:
  MCMeal(){}
  virtual ~MCMeal(){}

  void cooking()
  {
    cout<< "I am cooking Mc Meal\n";
  }
  void cleaning()
  {
    cout<< "I am cleaning Mc plates";
  }
};

class KFCMeal : public Lunch
{
public:
  KFCMeal() {}
  virtual ~KFCMeal(){}

  void cooking()
  {
    cout<< "I am cooking KFC Meal\n";
  }
  void eating
  {
    cout<< "KFC Meal is good\n";
  }
  void cleaning()
  {
    cout<< "I am cleaning KFC plates and cups\n";
  }
};


int main()
{
  Lunch* meal1 = new McMeal();
  meal1.feed();
  Lunch* meal2 = new KFCMeal();
  meal2.feed();
}