/*
 * 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.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.StringTokenizer;


public class CodeJam_B {
	public static void main(String[] args){
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		try{
			String countString = reader.readLine();
			int count = Integer.parseInt(countString);
			for(int i=0;i<count;i++){
				String line = reader.readLine();
				StringTokenizer stringTokenizer = new StringTokenizer(line);
			
				int totalCount = stringTokenizer.countTokens();
				int n = -1;
				int p = -1;
				int s = -1;
				int scoreArray[] = null;
				for(int j=0;j<totalCount;j++){
					String temp = stringTokenizer.nextToken();
					int value = Integer.parseInt(temp);
					if(j == 0){
						n = value;
						scoreArray = new int[n];
					}else if(j == 1){
						s = value;
					}else if(j ==2){
						p = value;
					}else{
						scoreArray[j-3] = value;
					}
				}

				Arrays.sort(scoreArray);
				
				int usedSurprises = 0;
				int possibleResult  = 0;
				if(p == 0){
					possibleResult = scoreArray.length;
				}else{
					int minAcceptableValue = (p * 3) - 2;
					int minSurprisedAcceptableValue = minAcceptableValue -2;

					for(int k=scoreArray.length-1;k>=0;k--){
						int temp = scoreArray[k];
						if(temp >= minAcceptableValue){
							possibleResult++;
							continue;
						}else if(temp < minAcceptableValue && temp >= minSurprisedAcceptableValue){
							if(usedSurprises < s){
								if(minSurprisedAcceptableValue > 0){
									possibleResult++;
									usedSurprises++;
								}
							}else{
								//out of surprises
							}
						}else{
							//not possible to get a score here
						}
					}
				}
				System.out.println("Case #"+(i+1)+": "+possibleResult);
				//System.out.println("Total Possbile Triplets : "+possibleResult);

			}   			
		}	
		catch (IOException ioe){
			System.out.println("An unexpected error occured.");
		}
	}



}
