[ Python ] [ Set Implementation ] [ Easy Approach ]
Code\n\nclass Solution:\n    def findDifference(self, nums1: List[int], nums2: List[int]) -> List[List[int]]:\n        res=[]\n        a=[]\n        a=set(nums1
# Code\n```\nclass Solution:\n    def findDifference(self, nums1: List[int], nums2: List[int]) -> List[List[int]]:\n        res=[]\n        a=[]\n        a=set(nums1) - set(nums2)\n        b=[]\n        b=set(nums2) - set(nums1)\n        res.append(a)\n        res.append(b)\n        return res\n```
['Python3']