#include <iostream>
using std::cout;

class Mammal {
public:
	void Move() const {
		cout << "Mammal move one step.\n";
	}
	void Move(int distance) const {
		cout << "Mammal move ";
		cout << distance << " steps.\n";
	}
protected:
	int itsAge;
	int itsWeight;
};

class Dog: public Mammal {
public:
	// You might receive a warning that you are hiding a function!
	void Move() const {
		cout << "Dog move 5 steps.\n";
	}
};

int main() {
	Mammal bigAnimal;
	Dog Fido;
	bigAnimal.Move();
	bigAnimal.Move(2);
	Fido.Move();
	// Fido.Move(10);
	return 0;
}