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CF1638A.Reverse
Reverse
You are given a permutation of length . You have to choose two integers () and reverse the subsegment of the permutation. The permutation will become $p_1,p_2, \dots, p_{l-1},p_r,p_{r-1}, \dots, p_l,p_{r+1},p_{r+2}, \dots ,p_n$.
Find the lexicographically smallest permutation that can be obtained by performing exactly one reverse operation on the initial permutation.
Note that for two distinct permutations of equal length and , is lexicographically smaller than if at the first position they differ, has the smaller element.
A permutation is an array consisting of distinct integers from to in arbitrary order. For example, is a permutation, but is not a permutation ( appears twice in the array) and is also not a permutation ( but there is in the array).
Input
Each test contains multiple test cases. The first line contains a single integer () — the number of test cases. Description of the test cases follows.
The first line of each test case contains a single integer () — the length of the permutation.
The second line of each test case contains integers () — the elements of the permutation.
Output
For each test case print the lexicographically smallest permutation you can obtain.
Note
In the first test case, the permutation has length , so the only possible segment is . The resulting permutation is .
In the second test case, we can obtain the identity permutation by reversing the segment . The resulting permutation is .
In the third test case, the best possible segment is . The resulting permutation is .
In the fourth test case, there is no lexicographically smaller permutation, so we can leave it unchanged by choosing the segment . The resulting permutation is .
Samples
4
1
1
3
2 1 3
4
1 4 2 3
5
1 2 3 4 5
1
1 2 3
1 2 4 3
1 2 3 4 5
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