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class Solution:
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    def reverseParentheses(self, s: str) -> str:
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        stack = []
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        ans = ""
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        res = deque([])
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        s = list(s)
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        for i in s:
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            if i == ")":
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                while stack[-1] != "(":
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                    res.append(stack.pop())
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                stack.pop()
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                while res:
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                    stack.append(res.popleft())
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            else:
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                stack.append(i)
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        return "".join(stack)