/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package IO;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
    
/**
 * 
 * @author dannocz
 */
public class InputReader {
    
    public static Input readFile(String filename){
        try {
              
              /*  Sets up a file reader to read the file passed on the command
          77        line one character at a time */
              FileReader input = new FileReader(filename);
              
              /* Filter FileReader through a Buffered read to read a line at a
                 time */
              BufferedReader bufRead = new BufferedReader(input);
              
              String line;    // String that holds current file line
              int count = 0;  // Line number of count 
              ArrayList<String> cases= new ArrayList<String>();
              
              // Read first line
              line = bufRead.readLine();
              int noTestCases=Integer.parseInt(line);
              count++;
              
              // Read through file one line at time. Print line # and line
              while (count<=noTestCases){
                  //System.out.println("Reading. "+count+": "+line);
                  line = bufRead.readLine();
                  cases.add(line);
                  count++;
              }
              
              bufRead.close();
              
              return new Input(noTestCases,cases);
              
          }catch (ArrayIndexOutOfBoundsException e){
              /* If no file was passed on the command line, this expception is
              generated. A message indicating how to the class should be
              called is displayed */
              e.printStackTrace();        
  
          }catch (IOException e){
              // If another exception is generated, print a stack trace
              e.printStackTrace();
          }
        
        return null;
          
      }// end main
    }

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Scanner;


public class B {
	private static final String INPUTFILE = "./B-large.in";
	private static final String OUTPUTFILE = "./B-large.out";
	private static FileReader in;
	private static FileWriter out;
	private static BufferedReader buffIn;
	private static BufferedWriter buffOut;
	private static Scanner s;

	public static String executeSingle(){
		int res = 0;
		int N = s.nextInt();
		int S = s.nextInt();
		int p = s.nextInt();
		int[] t= new int[N];
		for(int i=0;i<N;i++){
			t[i] = s.nextInt();
		}
		Arrays.sort(t);
		int minimumOKScore = p+Math.max(p-1, 0)*2;
		int minimumPossibleScore = p+Math.max(p-2, 0)*2;
		//tant que le score est plus grand que le plus petit plausible possible (p+p-1+p-1)
		
		for(int i=N-1;i>=0;i--){
			if(t[i]>= minimumOKScore){
				res++;
			}
			else if(t[i]>= minimumPossibleScore && S > 0){
				S--;
				res++;
			}
		}
		
		
		return ""+res;
	}


	public static void execute() throws IOException{
		int n = s.nextInt();
		s.nextLine();
		for(int i=1;i<=n;i++){
			buffOut.append("Case #"+i+": "+executeSingle());
			buffOut.newLine();
			//System.out.println("Case #"+i+": "+executeSingle());
		
		}
	}


	public static void main(String[] args) throws IOException {
		in = new FileReader(INPUTFILE);
		out = new FileWriter(OUTPUTFILE);
		buffIn = new BufferedReader(in);
		buffOut = new BufferedWriter(out);
		s = new Scanner(buffIn);
		execute();
		buffOut.flush();
		buffOut.close();
		buffIn.close();
		out.close();
		in.close();
	}

}