import java.io.*;
import java.util.*;
public class Main {
    public static void main(String args[]) {
 
       String input = "";
       BufferedReader bReader = new BufferedReader(new InputStreamReader(System.in));
       try {
 
        	while((input = bReader.readLine()) != null) {
        		String word[] = input.split(" ");
        		if (word.length > 1) {
        			int A = Integer.parseInt(word[0]);
        			int B = Integer.parseInt(word[1]);
        			System.out.println(A + B); 
        		}
        	}
        } catch (IOException e){
            e.printStackTrace();
        }       
	}
}

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