import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int t = in.nextInt();
        for(int i = 0;i < t;i++) { 
            int a = in.nextInt();
            int b = in.nextInt();
            System.out.println(a + b);
        }
        in.close();
    }
}