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 com.sun.xml.internal.messaging.saaj.packaging.mime.util.LineInputStream;
import sun.tools.tree.ReturnStatement;

import javax.swing.*;
import java.io.*;
import java.util.ArrayList;

/**
 * Date: 14/4/12
 * Time: 9:19 AM
 */
public class GoogleFileStream {
    public static ArrayList<String> getInput() throws IOException {
        JFileChooser fc = new JFileChooser();
        fc.showOpenDialog(null);
        File f = fc.getSelectedFile();

        ArrayList<String> ret = new ArrayList<String>();
        LineInputStream lis = new LineInputStream(new FileInputStream(f));
        String line;
        while( (line = lis.readLine()) != null )
        {
            ret.add(line);
        }

        // number of lines:
        ret.remove(0);

        return ret;
    }

    public static void setOutput(ArrayList<String> ret) throws IOException {

        JFileChooser fc = new JFileChooser();
        fc.showSaveDialog(null);
        File f = fc.getSelectedFile();

        StringBuilder sb = new StringBuilder();
        FileWriter fw = new FileWriter(f);
        for( int i = 0; i < ret.size(); i++ )
        {
            sb.delete(0, sb.length());
            sb.append(String.format( "Case #%d: ", i + 1));
            sb.append( ret.get(i) );
            sb.append( "\n" );

            String o = sb.toString();
            fw.write( o );
            System.out.print(o);
        }
        fw.close();
    }
}
