10952 : A + B - 5

import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {

		Scanner sc = new Scanner(System.in);

		int sum = 0;

		while (true) {
			int num1 = sc.nextInt();
			int num2 = sc.nextInt();
			
			if (!(num1 > 0 && num1 < 10 && 10 > num2 && num2 > 0))
				break;
			sum = num1 + num2;
			System.out.println(sum);

		}
	}
}