import java.util.*;
class Animal{
    void print(){
        System.out.println("Animal");
    }
}
class Dog extends Animal{
    void print(){
        System.out.println("Dog");
    }
}
class Cat extends Animal{
    void print(){
        System.out.println("Cat");
    }
}
public class Main{
    public static void main(String[] args){
        Dog obj1=new Dog();
        obj1.print();
        Cat obj2=new Cat();
        obj2.print();
    }
}