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CF1391A.Suborrays
Suborrays
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).
For a positive integer , we call a permutation of length good if the following condition holds for every pair and () —
- $(p_i \text{ OR } p_{i+1} \text{ OR } \ldots \text{ OR } p_{j-1} \text{ OR } p_{j}) \ge j-i+1$, where denotes the bitwise OR operation.
In other words, a permutation is good if for every subarray of , the of all elements in it is not less than the number of elements in that subarray.
Given a positive integer , output any good permutation of length . We can show that for the given constraints such a permutation always exists.
Input
Each test contains multiple test cases. The first line contains the number of test cases (). Description of the test cases follows.
The first and only line of every test case contains a single integer ().
Output
For every test, output any good permutation of length on a separate line.
Note
For , is a good permutation. Some of the subarrays are listed below.
Similarly, you can verify that is also good.
Samples
3
1
3
7
1
3 1 2
4 3 5 2 7 1 6
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