package problem1;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Arrays;





public class Problem1 {

    public static void main(String[] args) throws FileNotFoundException, IOException{
        try {
             TextIO.readFile("L:\\Coodejam\\Input\\Input.txt");
        }
        catch (IllegalArgumentException e) {
              System.out.println("Can't open file ");
              System.exit(0);
         }
        
        FileOutputStream fout = new FileOutputStream("L:\\Coodejam\\Output\\output.txt");
        PrintStream ps=new PrintStream(fout);
        
        int cases=TextIO.getInt();
        int googlers=0,surprising=0,least=0;
        for(int i=0;i<cases;i++){
            int counter=0;
            googlers=TextIO.getInt();
            surprising=TextIO.getInt();
            least=TextIO.getInt();
            int score[]=new int[googlers];
            for(int j=0;j<googlers;j++){
                score[j]=TextIO.getInt();
                 }
            
            
            
            
            Arrays.sort(score);
            int temp=0;
            int sup[]=new int[surprising];
            
          for(int j=0;j<googlers && surprising>0;j++){
               if(biggestNS(score[j])<least && biggestS(score[j])==least){
                   surprising--;
                   counter++;
                }
               }
           
            for(int j=0;j<googlers;j++){
                if(surprising==0)temp=biggestNS(score[j]);
                    
                else {
                    temp=biggestS(score[j]);
                    surprising--;     
                } 
                   if(temp>=least)counter++;
           
             }
            
             ps.println("Case #"+(i+1)+": "+counter);
        }
    }
    
   static int biggestNS(int x){
       if(x==0)return 0;
       if(x==1)return 1;
       return ((x-1)/3)+1;
   }
   
   static int biggestS(int x){
       if(x==0)return 0;
       if(x==1)return 1;
       return ((x-2)/3)+2;
   }
}


import java.io.IOException;
import java.io.InputStream;

public class Input {

	static final int BUFFER_SIZE = 65535;
	static final int STRING_SIZE = 1024;

	InputStream in;
	byte[] buffer;
	byte[] strBuffer;
	int pos;

	public Input(InputStream in) {
		this.in = in;
		this.buffer = new byte[BUFFER_SIZE];
		this.strBuffer = new byte[STRING_SIZE];
		this.pos = BUFFER_SIZE;
	}

	void skipWhitespace() throws IOException {
		byte b;
		do {
			b = readByte();
		} while (b <= ' ');
		--pos;
	}

	public byte readByte() throws IOException {
		if (pos == BUFFER_SIZE) {
			in.read(buffer);
			pos = 0;
		}
		return buffer[pos++];
	}

	public int readInt() throws IOException {
		skipWhitespace();
		int number = 0;
		int digit = readByte();
		int sign = 1;
		if (digit == '-') {
			sign = -1;
		} else {
			number = digit - '0';
		}

		digit = readByte();
		while (digit >= '0') {
			number *= 10;
			number += digit - '0';
			digit = readByte();
		}

		return sign * number;
	}

	public long readLong() throws IOException {
		skipWhitespace();
		long number = 0;
		int digit = readByte();
		int sign = 1;
		if (digit == '-') {
			sign = -1;
		} else {
			number = digit - '0';
		}

		digit = readByte();
		while (digit >= '0') {
			number *= 10;
			number += digit - '0';
			digit = readByte();
		}

		return sign * number;
	}
	
	public double readDouble() throws IOException {
		skipWhitespace();
		double number = 0;
		int digit = readByte();
		double sign = 1;
		if (digit == '-') {
			sign = -1;
		} else {
			number = digit - '0';
		}

		digit = readByte();
		while (digit >= '0') {
			number *= 10;
			number += digit - '0';
			digit = readByte();
		}
		if (digit == '.' || digit == ',') {
			digit = readByte();
			double remainder = 0;
			int depth = 0;
			while (digit >= '0') {
				remainder *= 10;
				remainder += digit - '0';
				depth++;
				digit = readByte();
			}
			if (depth == 1) {
				number += remainder / 10;
			} else {
				number += remainder / (Math.pow(10, depth));
			}

		}
		return sign * number;
	}
	public String readString() throws IOException {
		skipWhitespace();
		int length = 0;
		do {
			strBuffer[length++] = readByte();
		} while (strBuffer[length - 1] > ' ');
		return new String(strBuffer, 0, length - 1);
	}

}
