这道题英文版有一个很重要的信息There is exactly one character ( and exactly one character ) in this sequence.，其中文意思为“保证这个字符串里只有1个'('和一个')'。但是这题的翻译没给，非常误导人，恳请管理将其加入到本题翻译中。谢谢！
There is exactly one character ( and exactly one character ) in this sequence.
'('
')'
@mrsrz @BFqwq
