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class Solution:
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    def frequencySort(self, nums: List[int]) -> List[int]:
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        r = Counter(nums).most_common()
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        r.sort(key=lambda x: x[0], reverse=True)
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        r.sort(key=lambda x: x[1])
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        t = []
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        for i in r:
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            a, b = i
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            t.extend([a] * b)
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        return t