/*
 * 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.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;


public class Main {
	public static void main(String[] args) throws FileNotFoundException {
		Scanner in = new Scanner(new File("B-large.in"));
		PrintWriter out = new PrintWriter("C:\\Users\\JiaKY\\Desktop\\out.txt");
		//Scanner in = new Scanner(System.in);
		
		int t = Integer.valueOf(in.nextLine());
		for(int ii=0;ii<t;ii++){
			String line = in.nextLine();
			String[] data = line.split(" ");
			
			int n = Integer.valueOf(data[0]);
			int s = Integer.valueOf(data[1]);
			int p = Integer.valueOf(data[2]);
			
			int[] score = new int[n];
			
			for(int i=0;i<n;i++){
				score[i] = Integer.valueOf(data[3+i]);
			}
			Arrays.sort(score);
			
			int ans = 0;
			for(int i=score.length-1;i>=0;i--){
				int valid = 3*p-2;
				if(p<2)
					valid = p;
				int min = 3*p-4;
				if(p <= 2)
					min = p;
				if(score[i] >= valid)
					ans++;
				else if(s > 0){
					if(score[i] >= min){
						ans++;
						s--;
						if(s == 0)
							break;
					}
				}
			}
			out.printf("Case #%d: %d",ii+1,ans);
			out.println();
			out.flush();
		}
		
	}

}