/*
 * 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.*;
import java.util.*;

public class Main {
//	static Scanner in; static int next() throws Exception {return in.nextInt();};
	static StreamTokenizer in; static int next() throws Exception {in.nextToken(); return (int) in.nval;}
	static PrintWriter out;
	static String NAME = "b";

	public static void main(String[] args) throws Exception {
//		in = new Scanner(new File(NAME + ".in"));
		out = new PrintWriter(new File(NAME + ".out"));
		in = new StreamTokenizer(new BufferedReader(new FileReader(new File(NAME + ".in"))));

		int tests = next();
		int inf = 1000000;

		for (int test = 1; test <= tests; test++) {
			int n = next();
			int s = next();
			int p = next();
			int[] t = new int[n];
			for (int i = 0; i < n; i++) t[i] = next();

			int[][] max = new int[n + 1][n + 1];
			for (int[] mm : max) Arrays.fill(mm, -inf);
			max[0][0] = 0;

            for (int i = 0; i < n; i++)
            	for (int j = 0; j < n; j++) {
            		if (t[i] <= (p - 1) * 3) max[i + 1][j] = Math.max(max[i + 1][j], max[i][j]);
            		if (2 <= t[i] && t[i] <= (p - 1) * 3 - 2) max[i + 1][j + 1] = Math.max(max[i + 1][j + 1], max[i][j]);
            		if (p + 2*Math.max(p - 2, 0) <= t[i] && t[i] <= 28) max[i + 1][j + 1] = Math.max(max[i + 1][j + 1], max[i][j] + 1);
            		if (3*p - 2 <= t[i]) max[i + 1][j] = Math.max(max[i + 1][j], max[i][j] + 1);
            	}

			out.print("Case #" + test + ": ");
			out.println(max[n][s]);

		}
		
		out.close();
	}
}