package problem1;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Arrays;





public class Problem1 {

    public static void main(String[] args) throws FileNotFoundException, IOException{
        try {
             TextIO.readFile("L:\\Coodejam\\Input\\Input.txt");
        }
        catch (IllegalArgumentException e) {
              System.out.println("Can't open file ");
              System.exit(0);
         }
        
        FileOutputStream fout = new FileOutputStream("L:\\Coodejam\\Output\\output.txt");
        PrintStream ps=new PrintStream(fout);
        
        int cases=TextIO.getInt();
        int googlers=0,surprising=0,least=0;
        for(int i=0;i<cases;i++){
            int counter=0;
            googlers=TextIO.getInt();
            surprising=TextIO.getInt();
            least=TextIO.getInt();
            int score[]=new int[googlers];
            for(int j=0;j<googlers;j++){
                score[j]=TextIO.getInt();
                 }
            
            
            
            
            Arrays.sort(score);
            int temp=0;
            int sup[]=new int[surprising];
            
          for(int j=0;j<googlers && surprising>0;j++){
               if(biggestNS(score[j])<least && biggestS(score[j])==least){
                   surprising--;
                   counter++;
                }
               }
           
            for(int j=0;j<googlers;j++){
                if(surprising==0)temp=biggestNS(score[j]);
                    
                else {
                    temp=biggestS(score[j]);
                    surprising--;     
                } 
                   if(temp>=least)counter++;
           
             }
            
             ps.println("Case #"+(i+1)+": "+counter);
        }
    }
    
   static int biggestNS(int x){
       if(x==0)return 0;
       if(x==1)return 1;
       return ((x-1)/3)+1;
   }
   
   static int biggestS(int x){
       if(x==0)return 0;
       if(x==1)return 1;
       return ((x-2)/3)+2;
   }
}
import java.io.*;
import java.util.ArrayList;


public class inpOutHandler {

	public testCase readInput(String fname, int linesInTestCase){
		testCase allCases;
		ArrayList<String> lineList = new ArrayList<String>();
		BufferedReader rd = null;
			try {
				rd = new BufferedReader(new FileReader(fname));
				while (true) {
					String line = rd.readLine();
					if (line == null) break;
					lineList.add(line);
				}
				rd.close();
			} catch (IOException ex) {
				System.out.println("Can't open that file.");
			} 
			//for(int i=0;i<lineList.size();i++)
				//System.out.println("<" + lineList.get(i) + ">");
			
		int N = Integer.parseInt(lineList.get(0));
			//int N=100;
		allCases = new testCase(N);
		int index=1;
		for(int i=0;i<N;i++){
			String tempS="";
			for(int j=0;j<linesInTestCase;j++){
				if(j==linesInTestCase-1){
				tempS += lineList.get(index++);
				}else{
					tempS += lineList.get(index++) +"\n";
				}
			}
			allCases.addCase(tempS);
		}
		return allCases;
	}
	
	public void createOutput(String fname, String content){
		try{
			  // Create file 
			  FileWriter fstream = new FileWriter(fname);
			  BufferedWriter out = new BufferedWriter(fstream);
			  out.write(content);
			  //Close the output stream
			  out.close();
			  }catch (Exception e){//Catch exception if any
			  System.err.println("Error: " + e.getMessage());
			  }
	}
}
