K-th Ranked Score

Given several test cases, each containing a list of participant scores, your task is to find the score of the participant who ranks k-th when the scores are sorted in descending order.

For each test case, you are given:

• An integer \(n\): the number of participants.
• An integer \(k\): the rank you need to determine.
• A list of \(n\) integers representing the participants' scores.

The k-th highest score is defined by the following ordering:

\[ \text{score}_1 \geq \text{score}_2 \geq \cdots \geq \text{score}_n \]

It is guaranteed that \(k\) is valid for the provided list of scores.

inputFormat

The input is read from stdin and consists of multiple test cases. The format is as follows:

T
n1 k1
s11 s12 ... s1n1
n2 k2
s21 s22 ... s2n2
... 
nT kT
sT1 sT2 ... sTnT

Where:

• T is the number of test cases.
• For each test case, the first line contains two integers \(n\) and \(k\).
• The second line contains \(n\) integers representing the scores.

outputFormat

For each test case, output the k-th highest score on a separate line to stdout.

## sample

2
5 2
50 30 40 10 20
4 1
100 90 80 70

40
100

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