/*
 * 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 implements Runnable {
    BufferedReader reader;
    StringTokenizer tokenizer;
    PrintStream writer;

    Main() {
        reader = new BufferedReader(new InputStreamReader(System.in));
        tokenizer = new StringTokenizer("");
        writer = new PrintStream(new BufferedOutputStream(System.out));
    }

    public void run() {
        try {
            int testCount = nextInt();
            for (int test = 1; test <= testCount; ++ test) {
                int n = nextInt();
                int m = nextInt();
                int p = nextInt();
                boolean v[][][] = new boolean[31][2][2];
                for (int a = 0; a <= 10; ++ a) {
                    for (int b = a; b <= 10; ++ b) {
                        for (int c = 0; c <= 10; ++ c) {
                            if (c - a <= 2) {
                                v[a + b + c][c - a >= 2? 1: 0][c >= p? 1: 0] = true;
                            }
                        }
                    }
                }
                int dp[] = new int[m + 1];
                for (int j = 1; j <= m; ++ j) {
                    dp[j] = Integer.MIN_VALUE;
                }
                for (int i = 0; i < n; ++ i) {
                    int ti = nextInt();
                    int dp2[] = new int[m + 1];
                    for (int j = 0; j <= m; ++ j) {
                        dp2[j] = Integer.MIN_VALUE;
                        for (int x = 0; x < 2; ++ x) {
                            for (int y = 0; y < 2; ++ y) {
                                if (v[ti][x][y] && j >= x) {
                                    dp2[j] = Math.max(dp2[j], dp[j - x] + y);
                                }
                            }
                        }
                    }
                    dp = dp2;
                }
                System.out.printf("Case #%d: %d\n", test, dp[m]);
            }
        } catch (Exception e) {
        }
    }

    String nextToken() throws IOException {
        while (!tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(reader.readLine());
        }
        return tokenizer.nextToken();
    }

    int nextInt() throws IOException {
        return Integer.parseInt(nextToken());
    }

    public static void main(String args[]) {
        new Thread(new Main()).run();
    }
}
