import java.io.*;
public class Main {
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());
while(T !=0){
String[] str = br.readLine().split(" ");
int a= Integer.parseInt(str[0]);
int b= Integer.parseInt(str[1]);
bw.write(String.valueOf(a+b) +"\n");
T-=1;
}
bw.flush();
bw.close();
}
}
OR
import java.io.*;
import java.util.ArrayList;
import java.util.List;
public class Main {
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());
List<Integer> list= new ArrayList<>();
while(T !=0){
String[] str = br.readLine().split(" ");
int a= Integer.parseInt(str[0]);
int b= Integer.parseInt(str[1]);
list.add(a+b);
T-=1;
}
for(int i = 0; i< list.size(); i++){
bw.write(list.get(i)+"\n");
}
bw.flush();
bw.close();
}
}