※주의
import java.io.*;
import java.util.StringTokenizer;
public class B15552 {
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 testCnt = Integer.parseInt(br.readLine());
int result;
for(int i=0; i<testCnt; i++){
String AB = br.readLine();
StringTokenizer st = new StringTokenizer(AB, " ");
int A = Integer.parseInt(st.nextToken());
int B = Integer.parseInt(st.nextToken());
result = A+B;
bw.write(String.valueOf(result));
bw.write("\n");
}
bw.flush();
}
}