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.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class IOGoogleCodeJam{
	public static ArrayList<String> fileInput(String fileName){
		File file = null;
		FileReader fr = null;
		BufferedReader br = null;
		ArrayList<String> inputs= new ArrayList<String>();
		int lines;
		try {
			// Apertura del fichero y creacion de BufferedReader para poder
			// hacer una lectura comoda (disponer del metodo readLine()).
			file= new File (fileName);
			fr = new FileReader (file);
			br = new BufferedReader(fr);
			// Lectura del fichero
			while(br.ready()){
				inputs.add(br.readLine());
			}
		}catch(Exception e){
			e.printStackTrace();
	         }finally{
	         // En el finally cerramos el fichero, para asegurarnos
	         // que se cierra tanto si todo va bien como si salta 
	         // una excepcion.
	         try{                    
	            if( null != fr ){   
	               fr.close();     
	            }                  
	         }catch (Exception e2){ 
	            e2.printStackTrace();
	         }
		}
		return inputs;
	}
	
	public static void resultsOutput(ArrayList<String> args, int argsPerLine){
		int numArg=0;
		int maxNumber= args.size()/argsPerLine;
		for(int caseNumber=1;caseNumber<=maxNumber;caseNumber++){
			System.out.print("Case #"+caseNumber+": ");
			for(int i=1;i<=argsPerLine;i++){
				System.out.print(args.get(numArg)+" ");
				numArg++;
			}
			System.out.println();
		}
	}
}

