杭电oj————2057（java）

package hduoj;

import java.util.Scanner;

public class hdoj_2057 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            String the_first = sc.next();
            String the_last = sc.next();
            long the_first_one = Long.parseLong(the_first.replaceAll("\\+",""),16);
            long the_last_one = Long.parseLong(the_last.replaceAll("\\+",""),16);
            long sum = the_first_one + the_last_one;
            //String the_res = Integer.toHexString(Math.abs(sum)).toUpperCase();
            if(sum<0){
                System.out.println("-" + Long.toHexString((-1)*sum).toUpperCase());
            }else{
                System.out.println(Long.toHexString(sum).toUpperCase());
            }

        }
    }
}