解法

import java.util.*;
class Point{
        public int x;
        public int y;
        public Point(int x,int y){
            this.x=x;
            this.y=y;
        }
    }
public class Main{

    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        String[] arr = scan.next().split("\\;+");
        Point now=new Point(0,0);
        for(int i=0;i<arr.length;i++){
            if(isValid(arr[i])){
                char ch=arr[i].charAt(0);
                int num=Integer.valueOf(arr[i].substring(1));
                if(ch=='A'){
                    now.x-=num;
                }else if(ch=='D'){
                    now.x+=num;
                }else if(ch=='W'){
                    now.y+=num;
                }else if(ch=='S'){
                    now.y-=num;
                }
            }
        }
        System.out.println(now.x+","+now.y);
    }
    public static boolean isValid(String str){
        char ch=str.charAt(0);
        if(ch=='A'||ch=='D'||ch=='W'||ch=='S'){
            str=str.substring(1);
            for(int i=0;i<str.length();i++){
                if(!Character.isDigit(str.charAt(i))){
                    return false;
                }
            }
            return true;
        }else{
            return false;
        }
    }
}