/*
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 * 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.*;

public class b {
	static int n,s,p;
	static int[] v;
	static int[][] memo;
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		for(int t=1; t<=T; t++) {
			n = in.nextInt();
			s = in.nextInt();
			p = in.nextInt();
			v = new int[n];
			for(int i=0; i<n; i++)
				v[i] = in.nextInt();
			memo = new int[n][s+1];
			for(int[] x : memo) Arrays.fill(x,-1);
			System.out.printf("Case #%d: %d%n", t, go(0,s));
		}
	}
	static int go(int pos, int left) {
		if(left < 0) return -10000;
		if(pos == n) return left == 0 ? 0:-10000;	
		if(memo[pos][left] != -1) return memo[pos][left];
		int best = -10000;
		for(int i=0; i<=10; i++)
			for(int j=i; j<=i+2; j++)
				for(int k=j; k<=i+2; k++)
					if(i+j+k==v[pos]) {
						int sup = 0;
						if(k-i==2) sup = 1;
						int win = 0;
						if(k >= p) win = 1;
						best = Math.max(best,win+go(pos+1,left-sup));
					}
		return memo[pos][left] = best;
	}
}