下一个排列

def solve():
    def nextPermutation(____):
        i = len(____) - ____
        while i >= ____ and nums[i] >= nums[i+____]:
            i -= ____
        if i >= ____:
            j = len(____) - ____
            while j >= ____ and nums[j] <= nums[i]:
                j -= ____
            nums[i], nums[j] = nums[j], nums[i]
        left, right = i+____, len(____)-____
        while left < right:
            nums[left], nums[right] = nums[right], nums[left]
            left += ____
            right -= ____
    nums = [____, ____, ____]
    nextPermutation(____)
    print(____)