import java.io.*;
public class q15552 {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
int T = Integer.parseInt(br.readLine());
for(int i=0; i<T; i++) {
String[] input = br.readLine().split(" ");
bw.write((Integer.parseInt(input[0]) + Integer.parseInt(input[1]))+"\n");
}
bw.flush();
}
}