import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;


public class GooglersDancer {

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		InputStreamReader converter = new InputStreamReader(System.in);
		BufferedReader in = new BufferedReader(converter);
		if (in == null) {
		      return;
		    }
		String numTest = in.readLine();
		int maxCases = Integer.valueOf(numTest);
		for(int i=1;i<= maxCases;i++){
			String linea = in.readLine();
			String[] datos = linea.split(" ");
			Integer googlers = Integer.valueOf(datos[0]);
			Integer sospechosos = Integer.valueOf(datos[1]);
			Integer p = Integer.valueOf(datos[2]);
			Integer puntuacion;
			Integer personas = 0;
			ArrayList<Integer> puntuaciones = new ArrayList<Integer>();
			for(int j=0;j<googlers;j++){
				puntuacion = Integer.valueOf(datos[3+j]);
				puntuaciones.add(puntuacion);
			}
			Integer[] pOrdenado = null;
			pOrdenado = (Integer[]) puntuaciones.toArray(new Integer[puntuaciones.size()]);
			Arrays.sort(pOrdenado);
			int j;
			for(j=pOrdenado.length-1;j>=0;j--){
				if(pOrdenado[j] >= p*3-2){
					personas += 1;
				}else{
					break;
				}
			}
			int posibles = j+1-sospechosos;
			for(;j>=posibles && j>= 0;j--){
				if(pOrdenado[j] >= p*3-4 && pOrdenado[j] > p){
					personas += 1;
				}else{
					break;
				}
			}
			System.out.println("Case #"+i+": "+personas);
		}
	}

}

import java.io.PrintWriter;
import java.io.FileWriter;
import java.io.BufferedReader;
import java.io.FileReader;
/**
 * Base class to provide a framework for Google Code Jam type of problems and avoid redundant tasks 
 * @author nitin
 */
public class BaseSolution {
         
	/**
	 * Used to write log for debugging
	 */
	PrintWriter logger;
	/**
	 * to print solution to output.txt
	 */
	PrintWriter output;
	/**
	 * used to read the problem file
	 */
	BufferedReader br;
	boolean logToConsole = false;
	public void setLogToConsole(boolean flag){
		logToConsole = flag;
	}
	public void start(String probPath) throws Exception {
	        logger = new PrintWriter(new FileWriter("debug.txt"));
		output = new PrintWriter(new FileWriter("output.txt"));
                br =  new BufferedReader(new FileReader(probPath));
		init();
		closeAll();
	}
	public void logTo(PrintWriter pw){
		logger = pw;
	}
	public void init() throws Exception{
		int num_test_cases = readInt();
		log("Total test cases : "+num_test_cases);
		for(int i=0;i<num_test_cases;i++)
		{
			solveTestCase(i,num_test_cases);
		}
	}
	public void solveTestCase(int index,int total_test_cases) throws Exception{
		solveTestCase(index);
	}
	public String solveTestCase() throws Exception{
              return "Solve method not implemented";
	}
	public void solveTestCase(int index) throws Exception{
	       printSol(index,solveTestCase());
	}
	public String readLine() throws Exception{
		return br.readLine();
	}
	public int readInt() throws Exception{
		return Integer.parseInt(readLine());
	}
	public void finalize() throws Exception{
		if(logger!=null){
			logger.close();
		}
		if(output!=null){
			output.close();
		}
		if(br!=null){
			br.close();
		}
	}
	public void closeAll() throws Exception{
		try{
		if(logger!=null){
		logger.close();
		logger = null;
		}
		}catch(Exception e){
			System.out.println("Exception "+e);
		}
		finally{
		if(output!=null){
		output.close();
		output = null;
		if(br!=null)
		{
			br.close();
		}
		}
		}
	}
	public void printSol(int i,String str){
		printSol("Case #"+(i+1)+": "+str);
	}
	public void printSol(String str){
		output.println(str);
	}
	public void log(String str){
                if(1==1) return;
		if(logToConsole==false){
			logger.println(str);
		} else {
			System.out.println(str);
		}
	}
       
	
}
