import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int t = scanner.nextInt();
        // 注意 hasNext 和 hasNextLine 的区别
        for (int i = 0; i < t; i++) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            System.out.println(a + b);
        }
        scanner.close();
    }
}