#include <iostream>

class Animal
{
	int i;
public:
	Animal(int ii): i(ii) {};
	Animal(const Animal &a): i(a.i){} 
	void move() const{std::cout << "Animal::move\n";}
};

class Dog : public Animal
{
	int i;
public:
	Dog(int ii): i(ii), Animal(ii) {}
	Dog(const Dog &d): Animal(d), i(d.i) {}
	virtual void move() const{std::cout << "Dog::move\n";}
};

class Labrador : public Dog
{
	int i;
public:
	Labrador(int ii): i(ii), Dog(ii) {}
	Labrador(const Labrador &l): Dog(l), i(l.i) {}
	void move() const{std::cout << "Labrador::move\n";}
};

void f(const Animal &a) {a.move();}
void g(const Dog &d) {d.move();}
void h(const Labrador &l) {l.move();}

int main()
{
	Labrador c(2);

	std::cout << "Labrador as animal:\n";
	f(c);
	std::cout << "Labrador as dog:\n";
	g(c);
	std::cout << "Labrador as Labrador:\n";
	h(c);
}