import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) {
        
              
        Scanner in = new Scanner(System.in);

        int N = in.nextInt();
        for (int i = 0; i < N; i++) {
            int a = in.nextInt();
            int b = in.nextInt();
            System.out.println(a + b);
        
        }

    }
}