import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;


public class GooglersDancer {

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		InputStreamReader converter = new InputStreamReader(System.in);
		BufferedReader in = new BufferedReader(converter);
		if (in == null) {
		      return;
		    }
		String numTest = in.readLine();
		int maxCases = Integer.valueOf(numTest);
		for(int i=1;i<= maxCases;i++){
			String linea = in.readLine();
			String[] datos = linea.split(" ");
			Integer googlers = Integer.valueOf(datos[0]);
			Integer sospechosos = Integer.valueOf(datos[1]);
			Integer p = Integer.valueOf(datos[2]);
			Integer puntuacion;
			Integer personas = 0;
			ArrayList<Integer> puntuaciones = new ArrayList<Integer>();
			for(int j=0;j<googlers;j++){
				puntuacion = Integer.valueOf(datos[3+j]);
				puntuaciones.add(puntuacion);
			}
			Integer[] pOrdenado = null;
			pOrdenado = (Integer[]) puntuaciones.toArray(new Integer[puntuaciones.size()]);
			Arrays.sort(pOrdenado);
			int j;
			for(j=pOrdenado.length-1;j>=0;j--){
				if(pOrdenado[j] >= p*3-2){
					personas += 1;
				}else{
					break;
				}
			}
			int posibles = j+1-sospechosos;
			for(;j>=posibles && j>= 0;j--){
				if(pOrdenado[j] >= p*3-4 && pOrdenado[j] > p){
					personas += 1;
				}else{
					break;
				}
			}
			System.out.println("Case #"+i+": "+personas);
		}
	}

}

import java.util.List;
import java.util.Map;


public class Dwtg {
	List<List<List<String>>> input;
	
	public Dwtg(List<List<List<String>>> input){
		this.input = input;
	}
	
	public void solve(){
		int googlers;
		int surprise;
		int p;
		int res;
		
		int scoreOk;
		int nbOk;
		int potentialSurp;
		int nbSurp;
		for(int i = 0; i < input.size(); i++){
			googlers = Integer.parseInt(input.get(i).get(0).get(0));
			surprise = Integer.parseInt(input.get(i).get(0).get(1));
			p = Integer.parseInt(input.get(i).get(0).get(2));
			res = 0;
			scoreOk = p*3;
			
			nbOk = 0;
			potentialSurp = 0;
			nbSurp = 0;
			if(p == 0){
				System.out.println("Case #" + (i+1) + ": " + googlers);
			}
			else{
				for(int x = 3; x < googlers + 3; x++){
					int score = Integer.parseInt(input.get(i).get(0).get(x));
					if( (score > 0) && (score >= (scoreOk - 2)) ){
						nbOk++;
					}
					else if( (score > 0) && (score >= (scoreOk - 4)) ){
						potentialSurp++;
					}
				}
				nbSurp = Math.min(potentialSurp, surprise);
				res = nbOk + nbSurp;
				System.out.println("Case #" + (i+1) + ": " + res);
			}
		}
	}
}
