import java.util.Scanner;

/**
 * 链接：https://ac.nowcoder.com/acm/contest/320/B
 * 来源：牛客网
 *
 * 输入第一行包括一个数据组数t(1 <= t <= 100)
 * 接下来每行包括两个正整数a,b(1 <= a, b <= 10^9)
 */
public class Main_02 {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int lineNumber = s.nextInt();
        for (int i = 0; i < lineNumber; i++) {
            int a = s.nextInt();
            int b = s.nextInt();
            System.out.println(a + b);
        }
    }
}