def bitwise_xor(s: str, t: str) -> str:
    length = len(s)
    res = []
    for i in range(length):
        res.append(str((int(s[i]) ^ int(t[i]))))
    return ''.join(res[::(- 1)])
def bitwise_xor(s: str, t: str) -> str:
    length = len(s)
    res = []
    for i in range(length):
        res.append(str((int(s[i]) ^ int(t[i]))))
    return .join(res[::(- 1)])