/*
 * 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.util.*;
import java.io.*;
public class B {
	public B(Scanner in, PrintWriter out) {
		int T = in.nextInt();
		in.nextLine();
		for (int t=0; t<T; t++) {
			int N = in.nextInt();
			int S = in.nextInt();
			int P = in.nextInt();
			int[] vals = new int[31];
			for (int i=0; i<N; i++)
				vals[in.nextInt()]++;
			int ans = 0;
			for (int d=0; d<=2; d++)
				for (int a=0; a<=10; a++)
					for (int b=Math.max(a-d,0); b<=a; b++)
						for (int c=Math.max(a-d,0); c<=a; c++) {
							if (d < 2 && a >= P) {
								ans+=vals[a+b+c];
								vals[a+b+c]=0;
							} else if (a >= P) {
								int tmp = Math.min(vals[a+b+c], S);
								S -= tmp;
								ans += tmp;
								vals[a+b+c] -= tmp;
							}
						}
			out.printf("Case #%d: %d\n",t+1,ans);
		}
		out.close();
	}
	public static void main(String[] args) throws FileNotFoundException {
		new B(new Scanner(new File("b.in")),new PrintWriter(new File("b.out")));
	}
}
