class Solution:

    def findDifference(self, nums1: List[int], nums2: List[int]) ->List[List
        [int]]:
        nums = set(nums1 + nums2)
        return [nums - set(nums2), nums - set(nums1)]

40dfc0cc5fcc2955581dfae5a53b95a23282c865
<mask token>

class Solution:
    <mask token>

class Solution:

    def findDifference(self, nums1: List[int], nums2: List[int]) ->List[List
        [int]]:
        nums = set(nums1 + nums2)
        return [nums - set(nums2), nums - set(nums1)]
