write a go solution for Description:
You are given an array a containing the weather forecast for Berlandia for the last n days. That is, a_i — is the estimated air temperature on day i (1<=i<=n).

You are also given an array b — the air temperature that was actually present on each of the days. However, all the values in array b are mixed up.

Determine which day was which temperature, if you know that the weather never differs from the forecast by more than k degrees. In other words, if on day i the real air temperature was c, then the equality |a_i-c|<=k is always true.

For example, let an array a = [1,3,5,3,9] of length n=5 and k=2 be given and an array b = [2,5,11,2,4]. Then, so that the value of b_i corresponds to the air temperature on day i, we can rearrange the elements of the array b so: [2,2,5,4,11]. Indeed:

- On the 1st day, |a_1-b_1|=|1-2|=1, 1<=2=k is satisfied;
- On the 2nd day |a_2-b_2|=|3-2|=1, 1<=2=k is satisfied;
- On the 3rd day, |a_3-b_3|=|5-5|=0, 0<=2=k is satisfied;
- On the 4th day, |a_4-b_4|=|3-4|=1, 1<=2=k is satisfied;
- On the 5th day, |a_5-b_5|=|9-11|=2, 2<=2=k is satisfied.

Input Format:
The first line of input data contains a single integer t (1<=t<=10^4) — the number of test cases.

The description of the test cases follows.

The first line of each test case contains two integers n (1<=n<=10^5) and k (0<=k<=10^9) — the number of days and the maximum difference between the expected and actual air temperature on each day.

The second line of each test case contains exactly n integers — elements of array a (-10^9<=a_i<=10^9).

The third line of each test case contains exactly n integers — elements of array b (-10^9<=b_i<=10^9).

It is guaranteed that the sum of n over all test cases does not exceed 10^5, and that the elements of array b can always be rearranged so that the equality |a_i-b_i|<=k is true for all i.

Output Format:
On a separate line for each test case, output exactly n numbers — the values of air temperature on each of the days in the correct order.

If there is more than one answer — output any of them.

Note:
None. Output only the code with no comments, explanation, or additional text.