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.util.ArrayList;
import java.util.Scanner;


public class GooglerDancer {

	private int caseNumber;
	private int numberOfGooglers;
	private int numberOfSuprisingTriplets;
	private int minimumBestScoreP;
	private ArrayList<Integer> list;


	public GooglerDancer(int caseNumber,String data) {

		this.caseNumber=caseNumber;
		Scanner s=new Scanner(data);
		this.numberOfGooglers=s.nextInt();
		this.numberOfSuprisingTriplets=s.nextInt();
		this.minimumBestScoreP=s.nextInt();
		list=new ArrayList<Integer>();
		while(s.hasNextInt()){
			list.add(s.nextInt());
		}
	}


	public void process() {
		int count =0;
		
		if(numberOfGooglers>0){
		/////
			if(minimumBestScoreP>0){
		for(int i=0;i<numberOfGooglers;i++){
			if(list.get(i)>0)
			{
			if((Integer)(list.get(i)/minimumBestScoreP)>=3){
				count++;
			}
			else{
				if((Integer)(minimumBestScoreP-(list.get(i)-minimumBestScoreP)/2)==1){
					count++;
				}
				else{
					if((Integer)(minimumBestScoreP-(list.get(i)-minimumBestScoreP)/2)==2 && numberOfSuprisingTriplets>0){
						count++;
						numberOfSuprisingTriplets--;
					}
				}
			}
		}
		}
		////////////
			}else{
				count=numberOfGooglers;
			}
		}
		System.out.println("Case #"+caseNumber+": "+count);

	}

}
