import java.util.*;

public class B {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int T = sc.nextInt();
        B th = new B();
        for (int i = 0; i < T; i++) {
            int n = sc.nextInt();
            int s = sc.nextInt();
            int p = sc.nextInt();
            int[] t = new int[n];
            for (int j = 0; j < n; j++) {
                t[j] = sc.nextInt();
            }
            int c = th.getAnswer(s,p,t);
            System.out.println("Case #" + (i+1) + ": " + c);
        }
    }
    public int getAnswer(int s, int p, int[] t) {
        int A1 = p + p-1+p-1;
        int A2 = p + p-2+p-2;
        if (A1 < 0)
            A1 = 0;
        if (A2 < 0)
            A2 = 1;
        int remain = s;
        int count = 0;
        int n = t.length;
        for (int i = 0; i < n; i++) {
            if (t[i] >= A1) {
                count++;
            } else if (t[i] < A1 && t[i] >= A2) {
                if (remain > 0) {
                    remain--;
                    count++;
                }
            }
        }
        return count;
    }
}


/*
 * Main.java
 * 
 * Created on 14.04.2012, 10:03:46
 * 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package codejam12;

import qualification.CodeJamQuali;

/**
 *
 * @author Besitzer
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    /*public static void main(String[] args) {
        char[] C = new char[26];      
        CodeJamQuali CJQ =new CodeJamQuali();
        CJQ.fillDict("our language is impossible to understand","ejp mysljylc kd kxveddknmc re jsicpdrysi",C);
        CJQ.fillDict("there are twenty six factorial possibilities","rbcpc ypc rtcsra dkh wyfrepkym veddknkmkrkcd",C);
        CJQ.fillDict("so it is okay if you want to just give up","de kr kd eoya kw aej tysr re ujdr lkgc jv",C);
        C['z'-'a']='q';        
        C['q'-'a']='z';
        System.out.println("abcdefghijklmnopqrstuvwxyz");
        System.out.println(C);
        for(int i =0;i<26;i++)if(C[i]=='z')System.out.println("found");
        
    }*/
    
    public static void main(String[] args) {

        CodeJamQuali CJQ =new CodeJamQuali();
        //CJQ.go("src/qualification/A-small-attempt0.in", 1);
        CJQ.go("src/qualification/B-large.in", 2);
        
    }

}
