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.*;
import java.io.*;
public class B {
	public B(Scanner in, PrintWriter out) {
		int T = in.nextInt();
		in.nextLine();
		for (int t=0; t<T; t++) {
			int N = in.nextInt();
			int S = in.nextInt();
			int P = in.nextInt();
			int[] vals = new int[31];
			for (int i=0; i<N; i++)
				vals[in.nextInt()]++;
			int ans = 0;
			for (int d=0; d<=2; d++)
				for (int a=0; a<=10; a++)
					for (int b=Math.max(a-d,0); b<=a; b++)
						for (int c=Math.max(a-d,0); c<=a; c++) {
							if (d < 2 && a >= P) {
								ans+=vals[a+b+c];
								vals[a+b+c]=0;
							} else if (a >= P) {
								int tmp = Math.min(vals[a+b+c], S);
								S -= tmp;
								ans += tmp;
								vals[a+b+c] -= tmp;
							}
						}
			out.printf("Case #%d: %d\n",t+1,ans);
		}
		out.close();
	}
	public static void main(String[] args) throws FileNotFoundException {
		new B(new Scanner(new File("b.in")),new PrintWriter(new File("b.out")));
	}
}
