Python Simplest Solution
\nclass Solution:\n    def removeOuterParentheses(self, S: str) -> str:\n        \n        stack=[]\n        counter=0\n        for i in S:\n            if i==\
```\nclass Solution:\n    def removeOuterParentheses(self, S: str) -> str:\n        \n        stack=[]\n        counter=0\n        for i in S:\n            if i==\'(\':\n                counter=counter+1\n                if counter==1:\n                    pass\n                else:\n                    stack.append(i)\n            else:\n                counter=counter-1\n                if counter == 0:\n                    pass\n                else:\n                    stack.append(i)\n        return (\'\'.join(stack))\n```\n\nDo upvote \uD83D\uDC4D if you like and understand my approach!
['Python', 'Python3']