题解 | #坐标移动#

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);
        // 注意 hasNext 和 hasNextLine 的区别
        int x = 0;
        int y = 0;
        while (in.hasNextLine()) { // 注意 while 处理多个 case
            String s = in.nextLine();
            String[] ss = s.split(";");
            for(String a : ss){
                if(!a.startsWith("A") && !a.startsWith("D") &&
                    !a.startsWith("W") && !a.startsWith("S")){
                        continue;
                    }
                if(a.length() > 3){
                    continue;
                }    
                String start = a.substring(0,1);
                String p = a.substring(1);
                int num = 0;
                try{
                     num = Integer.valueOf(p);
                }catch(Exception e){
                    continue;
                }
                if(start.equals("A")){
                    x = x-num;
                }else if(start.equals("D")){
                    x = x+num;
                }
                if(start.equals("W")){
                    y =y+num;
                }
                if(start.equals("S")){
                    y = y - num;
                }
            }

            System.out.println(x +","+ y);
        }
    }
}