package mariaJava;

import java.util.Scanner;

public class Spotify1 {

	public static void main(String args[]) {
		System.out.println("Hello");
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		for (int t=0; t<n; t++) {
			int a= sc.nextInt();
			int b= sc.nextInt();
			System.out.println(a+b);
		}
		System.out.println("Done");
	}

}