import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int T = sc.nextInt();
int[] arr = new int[T];
for( int i=0; i<T; i++ ){
int a = sc.nextInt();
int b = sc.nextInt();
arr[i] = a + b;
}
for( int c : arr ){
System.out.println(c);
}
sc.close();
}
}