#include <iostream>
  
enum BREED { YORKIE, CAIRN, DANDIE, SHETLAND, DOBERMAN, LAB };
  
class Mammal
{
public:
    // constructors
    Mammal() { std::cout << "Mammal constructor ...\n"; }
    ~Mammal() { std::cout << "Mammal destructor ...\n"; }
  
    // other methods
    void speak() const { std::cout << "Mammal sound!\n"; }
    void sleep() const { std::cout << "Shhh. I'm sleeping.\n"; }
  
protected:
    int age;
    int weight;
};
  
class Dog : public Mammal
{
public:
    // constructors
    Dog() { std::cout << "Dog constructor ...\n"; }
    ~Dog() { std::cout << "Dog destructor ...\n"; }
  
    // other methods
    void wagTail() { std::cout << "Tail wagging ...\n"; }
    void begForFood() { std::cout << "Begging for food ...\n"; }
    void speak() const { std::cout << "Woof!\n"; }
  
private:
    BREED breed;
};
  
int main()
{
    Mammal bigAnimal;
    Dog fido;
    bigAnimal.speak();
    fido.speak();
    return 0;
}