正则表达式-字典类-坐标移动

import re
while True:
    try:
        filter_out=[re.match(r'^[AWDS][0-9]{1,2}$',i) for i in input().split(';')]
        while None in filter_out:
            filter_out.remove(None)
        pos=[0,0]
        movement={'A':(-1,0),'D':(1,0),'W':(0,1),'S':(0,-1)}
        for i in filter_out:
            pos[0]+=movement[i.string[0]][0]*int(i.string[1:])
            pos[1]+=movement[i.string[0]][1]*int(i.string[1:])
        print('%d,%d'%tuple(pos))
    except:
        break