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.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;


public class ProblemB {
	public static void main(String[] args) throws IOException{
		FileInputStream fstream = new FileInputStream("B-large.in");
		DataInputStream in = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(in));
		String result ="";
		int num = Integer.parseInt(br.readLine());
		for (int i = 0; i < num; i++) {
			result += "Case #"+(i+1)+": ";
			String input[] = br.readLine().split(" ");
			int numGooglers = Integer.parseInt(input[0]);
			int numSurprising = Integer.parseInt(input[1]);
			int p = Integer.parseInt(input[2]);
			int greaterThanP = 0;
			int surprisingGreaterThanP = 0;
			for (int j = 0; j < numGooglers; j++) {
				int googler = Integer.parseInt(input[j + 3]);
				if (googler >= p + 2*(p-1))
					greaterThanP++;
				else if(googler >= p + 2*(p-2) && googler >= p)
					surprisingGreaterThanP++;
			}
			result += (greaterThanP+(int)Math.min(numSurprising, surprisingGreaterThanP));
			if (i != num - 1)
				result += "\n";
		}
		PrintWriter out = new PrintWriter(new BufferedWriter(
				new FileWriter(new File("out.txt"))));
		out.print(result);
		out.flush();
		out.close();
		System.out.print(result);
	}

}
