import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        String S = sc.next();
        String[] strings = S.split(",");
        int a = Integer.parseInt(strings[0]);
        int b = Integer.parseInt(strings[1]);
        System.out.printf("a + b = %d", a + b);
    }
}