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CF1858C.Yet Another Permutation Problem
Yet Another Permutation Problem
Alex got a new game called "GCD permutations" as a birthday present. Each round of this game proceeds as follows:
- First, Alex chooses a permutation of integers from to .
- Then, for each from to , an integer is calculated.
- The score of the round is the number of distinct numbers among .
Alex has already played several rounds so he decided to find a permutation such that its score is as large as possible.
Recall that denotes the greatest common divisor (GCD) of numbers and , and denotes the remainder of dividing by .
A permutation of length 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
The first line of the input contains a single integer () — the number of test cases.
Each test case consists of one line containing a single integer ().
It is guaranteed that the sum of over all test cases does not exceed .
Output
For each test case print distinct integers () — the permutation with the largest possible score.
If there are several permutations with the maximum possible score, you can print any one of them.
Note
In the first test case, Alex wants to find a permutation of integers from to . For the permutation , the array is equal to . It contains distinct integers. It can be shown that there is no permutation of length with a higher score.
In the second test case, Alex wants to find a permutation of integers from to . There are only two such permutations: and . In both cases, the array is equal to , so both permutations are correct.
In the third test case, Alex wants to find a permutation of integers from to . For the permutation , the array is equal to . It contains distinct integers so its score is equal to . It can be shown that there is no permutation of integers from to with a score higher than .
Samples
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5
2
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10
1 2 4 3 5
1 2
1 2 3 6 4 5 7
1 2 3 4 8 5 10 6 9 7
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