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CF2193B.Reverse a Permutation
Reverse a Permutation
A permutation of length is an array consisting of distinct integers from to in arbitrary order. For example, is a permutation, but and are not permutations.
You are given a permutation of length . You can perform the following operation exactly once:
- Choose two integers ().
- Reverse the segment in the permutation .
Your task is to output the lexicographically maximum permutation that can be obtained by performing this operation. A permutation is lexicographically greater than a permutation if for the first position where they differ, it holds that .
Input
Each test consists of several test cases. The first line contains a single integer () — the number of test cases. The description of the test cases follows.
The first line of each test case contains the number ().
The second line of each test case contains distinct integers .
It is guaranteed that the sum of the values of across all test cases does not exceed .
Output
For each test case, output the lexicographically maximum permutation that can be obtained with one operation.
Note
For the first test case, the best segment is . After reversing, . For the second test case, the best segment is . After reversing, .
Samples
4
4
3 2 1 4
3
3 1 2
4
4 3 2 1
2
2 1
4 1 2 3
3 2 1
4 3 2 1
2 1
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