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;
    }
}


import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;


public class QuestionA extends Question{

	private static Map<Character, Character> translationMap;
	private static boolean isInit;
	private StringBuilder sb;
	
	public QuestionA(Result result, Counter counter)
	{
		super(result, counter);
		if (!isInit) {
			init();
			isInit=true;
		}
	}
	
	private void init() {
		translationMap = new HashMap<Character, Character>();
		String text = "zyeq"+"ejp mysljylc kd kxveddknmc re jsicpdrysi"+"rbcpc ypc rtcsra dkh wyfrepkym veddknkmkrkcd"+"de kr kd eoya kw aej tysr re ujdr lkgc jv";
		String translation = "qaoz"+"our language is impossible to understand"+"there are twenty six factorial possibilities"+"so it is okay if you want to just give up";
		for (int i = 0; i < text.length(); i++) {
			if (!translationMap.containsKey(text.charAt(i)))
				translationMap.put(text.charAt(i), translation.charAt(i));
		}
	}

	@Override
	public void readInput(Scanner scanner) {
		sb = new StringBuilder();
		sb.append(scanner.nextLine());
	}
	
	@Override
	public String solution() {
		for (int i = 0; i < sb.length(); i++) {
			sb.setCharAt(i, translationMap.get(sb.charAt(i)));
		}
		return sb.toString();
	}


}
