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;
    }
}


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package IO;

import java.util.HashSet;
import java.util.Iterator;

/**
 *
 * @author dannocz
 */
public class Googler {
    
    private int score; //A score per googler
    private HashSet<Triplet> triplets; //A set of triplets per score
    private int surprisedCases;

    public Googler(int score, int surprisedCases) {
        this.score = score;
        this.surprisedCases=surprisedCases;
        this.triplets= new HashSet<Triplet>();
    }
    
    public void addTriplet(Triplet triplet)
    {
        triplets.add(triplet);
    }    
    
    public boolean result(int p){
        Iterator iterator=triplets.iterator();
        
        while (iterator.hasNext()) {
            Triplet triplet = (Triplet)iterator.next();
            if(triplet.compliesWithP(p) && triplet.surprised())
                return true;
        }
        
         iterator=triplets.iterator();
        while (iterator.hasNext()) {
            Triplet triplet = (Triplet)iterator.next();
            if(triplet.compliesWithP(p) && !triplet.surprised() && surprisedCases>0)
            {
                surprisedCases--;
                return true;
            }
        }
        return false;
    }

    public int getScore() {
        return score;
    }

    public void setScore(int score) {
        this.score = score;
    }

    public HashSet<Triplet> getTriplets() {
        return triplets;
    }

    public void setTriplets(HashSet<Triplet> triplets) {
        this.triplets = triplets;
    }
    
    
}
