题解 | #坐标移动#

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        Map<Character, Integer> map = new HashMap<Character, Integer>();
        while (in.hasNext()) { // 注意 while 处理多个 case
            String s = in.nextLine();
            int a = 0 ,b = 0;
            String[] sFg = s.split(";");
            String zzs = "[ADWS][0-9]+";
            for (int i = 0 ; i < sFg.length; i++) {
                if (sFg[i].matches(zzs)) {
                    map.put(sFg[i].charAt(0), map.getOrDefault(sFg[i].charAt(0), 0)
                            + Integer.valueOf(sFg[i].substring(1)));
                }
            }
            a = a - map.getOrDefault('A', 0) + map.getOrDefault('D', 0);
            b = b - map.getOrDefault('S', 0) + map.getOrDefault('W', 0);
            System.out.println(a + "," + b);
            map.clear();
        }
        in.close();
    }
}