import java.util.*;
import java.lang.*;
import java.io.*;
 
interface printable{  
    void print();
}
interface showable extends printable{
    void show();
}
class A2 implements showable{
    public void print(){   
        System.out.println("Hello");
    }
    public void show(){        
        System.out.println("Welcome");
    }
    public static void main(String[] args){
    showable obj=new A2();
    obj.print();  
    obj.show();
    }
}  

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