/*
 * 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.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.StringTokenizer;


public class Main_Dance {
	public static void main(String[] args)throws Exception {
		File _=new File("dance.in");
		BufferedReader br=_.exists()? new BufferedReader(new FileReader(_)):new BufferedReader(new InputStreamReader(System.in));
		int t=Integer.parseInt(br.readLine().trim());
		int n,s,p;
		ArrayList<Integer> scores;
		StringTokenizer st;
		int k,surprising,total;
		
		for (int i = 1; i <= t; i++) {
			scores=new ArrayList<Integer>();
			st=new StringTokenizer(br.readLine());
			n=Integer.parseInt(st.nextToken());
			s=Integer.parseInt(st.nextToken());
			p=Integer.parseInt(st.nextToken());
			k=p+2*Math.max(0, p-2);
			
			
			for (int j = 0; j < n; j++) {
				scores.add(Integer.parseInt(st.nextToken()));
			}
			total=0;
			surprising=0;
			Collections.sort(scores);
			for (int j = 0; j < scores.size(); j++) {
				if(scores.get(j)>=k)
					total++;
				if((p!=1&&p!=0)&&(scores.get(j)==p+2*(p-2)||scores.get(j)==p+2*(p-2)+1))
					surprising++;
			}
			
			if(surprising>s)
				total-=surprising-s;
			
			
			System.out.println("Case #"+i+": "+total);
		}
		
	}
}
