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CF1612B.Special Permutation
Special Permutation
A permutation of length is an array which contains every integer from to (inclusive) exactly once. For example, is a permutation of length .
You are given three integers , and , where is an even number. Print any permutation of length that the minimum among all its elements of the left half equals and the maximum among all its elements of the right half equals . Print -1 if no such permutation exists.
Input
The first line of the input contains one integer (), the number of test cases in the test. The following lines contain test case descriptions.
Each test case description contains three integers , , (; ; ), where is an even number (i.e. ).
Output
For each test case, print a single line containing any suitable permutation. Print -1 no such permutation exists. If there are multiple answers, print any of them.
Samples
7
6 2 5
6 1 3
6 4 3
4 2 4
10 5 3
2 1 2
2 2 1
4 2 6 5 3 1
-1
6 4 5 1 3 2
3 2 4 1
-1
1 2
2 1
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