/**
 * There is a village in Bangladesh, where brick game is very popular. Brick game is a team game. Each
 * team consists of odd number of players. Number of players must be greater than 1 but cannot be
 * greater than 10. Age of each player must be within 11 and 20. No two players can have the same age.
 * There is a captain for each team. The communication gap between two players depends on their age
 * difference, i.e. the communication gap is larger if the age difference is larger. Hence they select the
 * captain of a team in such a way so that the number of players in the team who are younger than that
 * captain is equal to the number of players who are older than that captain.
 * Ages of all members of the team are provided. You have to determine the age of the captain.
 * Input
 * Input starts with an integer T (T ≤ 100), the number of test cases.
 * Each of the next T lines will start with an integer N (1 < N < 11), number of team members
 * followed by N space separated integers representing ages of all of the members of a team. Each of these
 * N integers will be between 11 and 20 (inclusive). Note that, ages will be given in strictly increasing
 * order or strictly decreasing order. We will not mention which one is increasing and which one is
 * decreasing, you have to be careful enough to handle both situations.
 * Output
 * For each test case, output one line in the format ‘Case x: a’ (quotes for clarity), where x is the case
 * number and a is the age of the captain.
 * Sample Input
 * 2
 * 5 19 17 16 14 12
 * 5 12 14 16 17 18
 * Sample Output
 * Case 1: 16
 * Case 2: 16
 */
//https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2986

import static java.lang.Integer.parseInt;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class BrickGame {

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		int numberOfTestCases = input.nextInt();
		int caseNum = 1;
		while (numberOfTestCases != 0) {
			String[] numbersString = input.nextLine().split(" ");
			int numberOfMembers = parseInt(numbersString[0]);
			List<Integer> numbers = new ArrayList<Integer>();
			for (int i = 0; i < numberOfMembers + 1; i++) {
				numbers.add(parseInt(numbersString[i]));
			}
			Collections.sort(numbers);
			System.out.print("Case "
					+ caseNum
					+ ": "
					+ numbers.subList(1, numbers.size()).get(
							numberOfMembers / 2) + "\n");
			numberOfTestCases--;
			caseNum++;
		}
	}
}
