题解 | 坐标移动

import re
pattern = r'^[ASDW]\d+$'
a = input().split(';')
position = [0,0]
for i in a:
    match = re.match(pattern , i)
    if match:
        if i[0] == "A":
            position[0] -= int(i[1:])
        if i[0] == "D":
            position[0] += int(i[1:])
        if i[0] == "S":
            position[1] -= int(i[1:])
        if i[0] == "W":
            position[1] += int(i[1:])
result = ",".join(str(item) for item in position)
print(result)