import java.io.*;
import java.util.Scanner;

public class test {

public static void main(String[] args) throws IOException {
Scanner scanner=new Scanner(System.in);
int a1,a2;
while (scanner.hasNext()) {
a1=scanner.nextInt();
System.out.println();
a2=scanner.nextInt();
System.out.println();
System.out.println(a1+a2);
}
}
}