#include <iostream.h>

class unAnimal
{
protected:
  char* sonNom;
public:
  unAnimal(char* n = "un animal") : sonNom(n) {};
protected:
  virtual char* son_cri() const = 0;
public:
  virtual void s_exprimer() const {
    cout << sonNom << " : " << son_cri() << endl; };
};

class unMamifere
: public unAnimal
{
public:
  unMamifere(char* n = "un mamifere") : unAnimal(n) {};
};

class unChat
: public unMamifere
{
public:
  unChat(char* n = "un chat") : unMamifere(n) {};
protected:
  char* son_cri() const { return "Miaou"; };
};

class uneSouris
: public unMamifere
{
public:
  uneSouris(char* n = "une souris") : unMamifere(n) {};
protected:
  char* son_cri() const { return "Couic"; };
};

class unOiseau
: public unAnimal
{
public:
  unOiseau(char* n = "un oiseau") : unAnimal(n) {};
};

class unCanari
: public unOiseau
{
public:
  unCanari(char* n = "un canari") : unOiseau(n) {};
public:
  char* son_cri() const { return "Cuicui"; };
};