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 googlecodejam2012;

import java.io.FileNotFoundException;

/**
 *
 * @author Pavlos
 */
public class ProblemB {
    
      public static void main(String[] args) throws FileNotFoundException {
        Read.OpenFile("B-large.in");
        Write.OpenFile("solB.txt");
        int T = Read.readInt();
        for (int zz = 1; zz <= T; zz++) {
            int N = Read.readInt();
            int S = Read.readInt();
            int p = Read.readInt();
            int t[] = new int[N];
            for (int i = 0; i < t.length; i++) {
                t[i] = Read.readInt();
            }
            int counter = 0;
            for (int i = 0; i < t.length; i++) {
                if(t[i] >= p){
                int temp = t[i] - 3*p;
                if(temp >= -2)
                    counter++;
                else if(temp >= -4 && temp < -2 && S > 0)
                {
                    counter++;
                    S--;
                }
                }
                
            }
            //counter  -= S;
            
            if(counter > 3)
                counter  = 3;
            Write.WriteToFile(String.format("Case #%d: %d\n",zz, counter));
            
        }//end zz
        Write.CloseFile();
    }
}

