
import java.io.*;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new BufferedReader(new InputStreamReader(System.in)));
BufferedWriter bw = new BufferedWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
String input;
while ((input = br.readLine()) != null){
List<Integer> list = Arrays.stream(input.split(" ")).map(it -> Integer.parseInt(it)).collect(Collectors.toList());
int addition = list.get(0) + list.get(1);
String additionToString = String.valueOf(addition);
bw.write(additionToString);
bw.newLine();
}
bw.flush();
bw.close();
}
}