import java.io.*;
import java.util.*;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st;
int num = Integer.valueOf(br.readLine());
for(int i = 0; i < num; i++) {
st = new StringTokenizer(br.readLine(), " ");
System.out.println(Integer.valueOf(st.nextToken()) + Integer.valueOf(st.nextToken()));
}
}
}