import java.util.Scanner;
public class Main{
public static void main(String[] args) {
Scanner in =new Scanner (System.in);
while(in.hasNext()) {//相当于一直输入
int a=in.nextInt();
int b=in.nextInt();
System.out.println(a+b);
}
}
}
import java.util.Scanner;
public class Main{
public static void main(String[] args) {
Scanner in =new Scanner (System.in);
while(in.hasNext()) {//相当于一直输入
int a=in.nextInt();
int b=in.nextInt();
System.out.println(a+b);
}
}
}