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.io.BufferedReader;
import java.io.InputStreamReader;

public class Dancing_With_Googlers {
	public static void main(String[] args) {
		try {
			// Initialize
			InputStreamReader converter = new InputStreamReader(System.in);
			BufferedReader in = new BufferedReader(converter);
			String curLine = in.readLine();
			String[] googlers;
			
			// Find number of cases
			int N = Integer.parseInt(curLine);
			
			// Read line by line
			for (int line = 0; line < N; line++) {
				curLine = in.readLine();
				googlers = curLine.split(" ");
				int numGooglers = Integer.parseInt(googlers[0]);
				int numSurprising = Integer.parseInt(googlers[1]);
				int p = Integer.parseInt(googlers[2]);
				int curSurprising = 0;
				int maxGooglers = 0;
				
				for (int googler = 3; googler < googlers.length; googler++) {
					if (Integer.parseInt(googlers[googler]) >= 3*p-4
						&& Integer.parseInt(googlers[googler]) <= 3*p-3
						&& Integer.parseInt(googlers[googler]) > 0) {
						curSurprising++;
					}
					else if (Integer.parseInt(googlers[googler]) >= 3*p-2) {
						maxGooglers++;
					}
				}
				maxGooglers += Math.min(curSurprising, numSurprising);
					
				System.out.println("Case #" + (line+1) + ": " + maxGooglers);
			}
		} catch(Exception e) {
			System.out.println("Error: " + e.getMessage());
		}
	}
}
