import java.util.Scanner;
public class Main {
public static void main(String arg[]){
Scanner scin=new Scanner(System.in);
while(scin.hasNextInt()){
int a=scin.nextInt();
int b=scin.nextInt();
System.out.println(a+b);
}
}
}
public class Main {
public static void main(String arg[]){
Scanner scin=new Scanner(System.in);
while(scin.hasNextInt()){
int a=scin.nextInt();
int b=scin.nextInt();
System.out.println(a+b);
}
}
}