/*
 * 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.*;
import java.io.*;
public class B {
	public B(Scanner in, PrintWriter out) {
		int T = in.nextInt();
		in.nextLine();
		for (int t=0; t<T; t++) {
			int N = in.nextInt();
			int S = in.nextInt();
			int P = in.nextInt();
			int[] vals = new int[31];
			for (int i=0; i<N; i++)
				vals[in.nextInt()]++;
			int ans = 0;
			for (int d=0; d<=2; d++)
				for (int a=0; a<=10; a++)
					for (int b=Math.max(a-d,0); b<=a; b++)
						for (int c=Math.max(a-d,0); c<=a; c++) {
							if (d < 2 && a >= P) {
								ans+=vals[a+b+c];
								vals[a+b+c]=0;
							} else if (a >= P) {
								int tmp = Math.min(vals[a+b+c], S);
								S -= tmp;
								ans += tmp;
								vals[a+b+c] -= tmp;
							}
						}
			out.printf("Case #%d: %d\n",t+1,ans);
		}
		out.close();
	}
	public static void main(String[] args) throws FileNotFoundException {
		new B(new Scanner(new File("b.in")),new PrintWriter(new File("b.out")));
	}
}
