package test_01;

import java.util.Scanner;

public class test_03_21_2 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        while(scanner.hasNextInt())
        {
            int x=scanner.nextInt();
            int y=scanner.nextInt();
            Date date=new Date(x,y);
            System.out.println(date.getX()+date.getY());
        }
    }
}
class Date{
    private int x;
    private int y;
    public Date(int x,int y) {
        this.x = x;
        this.y = y;
    }
    public int getX()
    {
        return x;
    }
    public int getY()
    {
        return y;
    }
}