import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Scanner;

public class kloodL2_A {

    public static void main(String[] args) throws FileNotFoundException {
        File inFile1 = new File("A.dat");
        File inFile2 = new File("B.dat");
        PrintWriter outFile = new PrintWriter("C.dat");

        Scanner sc1 = new Scanner(inFile1);
        Scanner sc2 = new Scanner(inFile2);



        while(sc1.hasNext() && sc2.hasNext()) {
            int a = sc1.nextInt();
            int b = sc2.nextInt();
            int suma = a + b;
            outFile.println(suma);
        }
        outFile.close();
        sc1.close();
        sc2.close();

    }

}