Easy Python Solution - Concatenation
\n# Code\n\nclass Solution:\n    def getConcatenation(self, nums: List[int]) -> List[int]:\n        return 2*nums\n
\n# Code\n```\nclass Solution:\n    def getConcatenation(self, nums: List[int]) -> List[int]:\n        return 2*nums\n```
['Python3']