using System;

public class Inicio {

    public static void Main(string[] args) {

        new Cachorro();

        new Gato();

        new Jacare();

        new Sapo();

    }

}

​

class Animal {

    protected void isAnimal() {

        Console.WriteLine(" -> Animal");

    }

}

​

class Mamifero : Animal {

​

    protected void isMamifero() {

        Console.Write(" -> Mamífero");

        base.isAnimal();

    }

}

​

class Reptil : Animal {

​

    protected void isReptil() {

        Console.Write(" -> Réptil");

        base.isAnimal();

    }

}

​

class Anfibio : Animal {

    protected void isAnfibio() {

        Console.Write(" -> Anfíbio");

        base.isAnimal();

    }

}

​

class Cachorro : Mamifero {

    public Cachorro() {

        Console.Write("Cachorro");

        base.isMamifero();

    }

}

​

class Gato : Mamifero {

    public Gato() {

        Console.Write("Gato");

        base.isMamifero();

    }

}

​

class Jacare : Reptil {

    public Jacare() {

        Console.Write("Jacare");

        base.isReptil();

    }

}

​

class Sapo : Anfibio {

    public Sapo() {

        Console.Write("Sapo");

        base.isAnfibio();

    }

}