/*
 * 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
    }


/**
 * Name: Shivam99
 * email: shivthedestroyer99@gmail.com
 */

import java.io.*;

public class ProblemB
{
    public static void main(String[] args) throws IOException{
        FileReader fr=new FileReader(args[0]);
        BufferedReader br=new BufferedReader(fr);
        String str=br.readLine();
        int t=Integer.parseInt(str);
        String ss="";
        int c=1;
        while(c<=t){
            str=br.readLine();
            int n=0,s=0,p=0,surp=0,count=0,ans=0;
            int arr[]=new int[100];
            String word="";
            
            for(int ind=0;ind<str.length();ind++){
                char ch=str.charAt(ind);
                if(ch!=' ')
                    word+=ch;
                else{
                    count++;
                    int num=Integer.parseInt(word);
                    if(count==1){
                        n=num;
                        arr=new int[n];
                    }
                        else
                        if(count==2)
                            s=num;
                            else
                            if(count==3)
                                p=num;
                                else
                                arr[count-4]=num;
                    word="";              
                }
            }
            
            arr[count-3]=Integer.parseInt(word);
            int min=p+p+p-4;
            ss+="Case #"+c+": ";

            for(int ind=0;ind<arr.length;ind++){
                if(arr[ind]>=p && arr[ind]>=min)
                    ans++;
                if(arr[ind]==(min) || arr[ind]==(min+1))
                  if(arr[ind]>1)
                    surp++;
            }

           if(s<surp)
               ans=ans+s-surp;
           ss+=ans+"\n";
           c++;
        }
       System.out.print(ss);
       br.close();
       fr.close();
    }
}