/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam.common;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author Lance Chen
 */
public class CodeHelper {

    private static String FILE_ROOT = "D:/workspace/googlecodejam/meta";

    public static List<List<String>> loadInputsExcludes(String fileName) {
        List<List<String>> result = new ArrayList<List<String>>();
        List<String> lines = FileUtil.readLines(FILE_ROOT + fileName);
        int index = 0;
        for (String line : lines) {
            if (index == 0) {
                index++;
                continue;
            }
            if (index % 2 == 1) {
                index++;
                continue;
            }
            List<String> dataList = new ArrayList<String>();
            String[] dataArray = line.split("\\s+");
            for (String data : dataArray) {
                if (data.trim().length() > 0) {
                    dataList.add(data);
                }
            }
            result.add(dataList);
            index++;
        }
        return result;
    }

    public static List<List<String>> loadInputs(String fileName) {
        List<List<String>> result = new ArrayList<List<String>>();
        List<String> lines = FileUtil.readLines(FILE_ROOT + fileName);
        for (String line : lines) {
            List<String> dataList = new ArrayList<String>();
            String[] dataArray = line.split("\\s+");
            for (String data : dataArray) {
                if (data.trim().length() > 0) {
                    dataList.add(data);
                }
            }
            result.add(dataList);
        }
        return result;
    }

    public static List<String> loadInputLines(String fileName) {
        return FileUtil.readLines(FILE_ROOT + fileName);
    }

    public static void writeOutputs(String fileName, List<String> lines) {
        FileUtil.writeLines(FILE_ROOT + fileName, lines);
    }
}

import java.util.Scanner;


public class B {

	void run() {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		for (int t=1; t<=T; t++) {
			int N = in.nextInt();
			int S = in.nextInt();
			int p = in.nextInt();
			int[][] dp = new int[N+1][N+1];
			for (int i=0; i<N; i++) {
				int pt = in.nextInt();
				int sup, nsup;
				boolean supflg = true;
				if (pt >= 29 || pt <= 1) supflg = false;
				/*if (pt >= p*3) {
					nsup = 3;
				} else if (pt >= p*3-1) {
					nsup = 2;
				} else*/ if (pt >= p*3-2) {
					nsup = 1;
				} else {
					nsup = 0;
				}
				/*if (pt >= p*3+2) {
					sup = 3;
				} else if (pt >= p*3-2) {
					sup = 2;
				} else*/ if (pt >= p*3-4) {
					sup = 1;
				} else {
					sup = 0;
				}
				for (int j=0; j<=i; j++) {
					dp[i+1][j] = Math.max(dp[i+1][j], dp[i][j] + nsup);
					if (supflg)
						dp[i+1][j+1] = Math.max(dp[i+1][j+1], dp[i][j] + sup);
				}
			}
			System.out.println("Case #" + t + ": " + dp[N][S]);
		}
	}

	public static void main(String[] args) {
		B obj = new B();
		obj.run();
	}
}
