#D3747. No More Inversions
No More Inversions
No More Inversions
You have a sequence a with n elements 1, 2, 3, ..., k - 1, k, k - 1, k - 2, ..., k - (n - k) (k ≤ n < 2k).
Let's call as inversion in a a pair of indices i < j such that a[i] > a[j].
Suppose, you have some permutation p of size k and you build a sequence b of size n in the following manner: b[i] = p[a[i]].
Your goal is to find such permutation p that the total number of inversions in b doesn't exceed the total number of inversions in a, and b is lexicographically maximum.
Small reminder: the sequence of k integers is called a permutation if it contains all integers from 1 to k exactly once.
Another small reminder: a sequence s is lexicographically smaller than another sequence t, if either s is a prefix of t, or for the first i such that s_i ≠ t_i, s_i < t_i holds (in the first position that these sequences are different, s has smaller number than t).
Input
The first line contains a single integer t (1 ≤ t ≤ 1000) — the number of test cases.
The first and only line of each test case contains two integers n and k (k ≤ n < 2k; 1 ≤ k ≤ 10^5) — the length of the sequence a and its maximum.
It's guaranteed that the total sum of k over test cases doesn't exceed 10^5.
Output
For each test case, print k integers — the permutation p which maximizes b lexicographically without increasing the total number of inversions.
It can be proven that p exists and is unique.
Example
Input
4 1 1 2 2 3 2 4 3
Output
1 1 2 2 1 1 3 2
Note
In the first test case, the sequence a = [1], there is only one permutation p = [1].
In the second test case, the sequence a = [1, 2]. There is no inversion in a, so there is only one permutation p = [1, 2] which doesn't increase the number of inversions.
In the third test case, a = [1, 2, 1] and has 1 inversion. If we use p = [2, 1], then b = [p[a[1]], p[a[2]], p[a[3]]] = [2, 1, 2] and also has 1 inversion.
In the fourth test case, a = [1, 2, 3, 2], and since p = [1, 3, 2] then b = [1, 3, 2, 3]. Both a and b have 1 inversion and b is the lexicographically maximum.
inputFormat
Input
The first line contains a single integer t (1 ≤ t ≤ 1000) — the number of test cases.
The first and only line of each test case contains two integers n and k (k ≤ n < 2k; 1 ≤ k ≤ 10^5) — the length of the sequence a and its maximum.
It's guaranteed that the total sum of k over test cases doesn't exceed 10^5.
outputFormat
Output
For each test case, print k integers — the permutation p which maximizes b lexicographically without increasing the total number of inversions.
It can be proven that p exists and is unique.
Example
Input
4 1 1 2 2 3 2 4 3
Output
1 1 2 2 1 1 3 2
Note
In the first test case, the sequence a = [1], there is only one permutation p = [1].
In the second test case, the sequence a = [1, 2]. There is no inversion in a, so there is only one permutation p = [1, 2] which doesn't increase the number of inversions.
In the third test case, a = [1, 2, 1] and has 1 inversion. If we use p = [2, 1], then b = [p[a[1]], p[a[2]], p[a[3]]] = [2, 1, 2] and also has 1 inversion.
In the fourth test case, a = [1, 2, 3, 2], and since p = [1, 3, 2] then b = [1, 3, 2, 3]. Both a and b have 1 inversion and b is the lexicographically maximum.
样例
4
1 1
2 2
3 2
4 3
1
1 2
2 1
1 3 2
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