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.FileReader;
import java.io.IOException;
import java.util.ArrayList;


public class Inputter {

	public static ArrayList<Problem> getProblems(String file) throws NumberFormatException, IOException {
		
		BufferedReader in = new BufferedReader(new FileReader(file));
		
		int numOfProblems = Integer.parseInt(in.readLine());
		
		ArrayList<Problem> problems = new ArrayList<Problem>(numOfProblems);
		
		String curLine = in.readLine();
		while (curLine != null) {
			String[] values = curLine.split("[ \t]");
			
			int googlers = Integer.parseInt(values[0]);
			int suprising = Integer.parseInt(values[1]);
			int best = Integer.parseInt(values[2]);
			
			int[] totals = new int[googlers];
			
			for (int i = 3; i < values.length; i++) {
				totals[i - 3] = Integer.parseInt(values[i]);
			}

			problems.add(new Problem(googlers, suprising, best, totals));
			
			curLine = in.readLine();
		}
		
		in.close();
		
		return problems;
	}
}
