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);
		}
	}

}

/**
 * Copyright Carma Systems, Inc. All rights reserved.
 */
package com.jessehutton.codejam.util;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;

/**
 * @author Jesse Hutton <jesse.hutton@carmasys.com>
 */
public abstract class IOHandler {

  protected BufferedReader reader;
  protected PrintStream writer;

  public IOHandler(String inputFile) throws FileNotFoundException {
    this(new String[] {inputFile});
  }

  public IOHandler(String[] args) throws FileNotFoundException {
    reader = new BufferedReader(new FileReader(args[0]));
    if (args.length > 1 && args[1] != null) {
      writer = new PrintStream(new FileOutputStream(args[1]));
    } else {
      writer = System.out;
    }
  }

  public abstract String formatCase(int caseNum, Object result);

  public String line() throws IOException {
    return reader.readLine();
  }

  public void recordCase(int caseNum, Object result) {
    writer.println(formatCase(caseNum, result));
  }

  public void finish() {
    try {
      reader.close();
    } catch (IOException e) {
      System.err.println("closing reader failed.");
      e.printStackTrace();
    }

    writer.close();
  }
}
