import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String text = scan.next();
        String[] list = text.split(",");
        int a = Integer.parseInt(list[0]);
        int b = Integer.parseInt(list[1]);
        System.out.println("a + b = " + (a+b));
    }
}