import java.io.*;
import java.util.*;
public class HelloWorld{

     public static void main(String []args){
        System.out.println("Hello World");
        InputStream is = new FileInputStream("adunare.in");
        OutputStream os = new FileOutputStream("adunare.out");

        Scanner s = new Scanner(is);
        PrintStream w = new PrintStream(os);

        int x = s.nextInt();
        int y = s.nextInt();

        w.print(x+y);
     }
}