/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam.common;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author Lance Chen
 */
public class CodeHelper {

    private static String FILE_ROOT = "D:/workspace/googlecodejam/meta";

    public static List<List<String>> loadInputsExcludes(String fileName) {
        List<List<String>> result = new ArrayList<List<String>>();
        List<String> lines = FileUtil.readLines(FILE_ROOT + fileName);
        int index = 0;
        for (String line : lines) {
            if (index == 0) {
                index++;
                continue;
            }
            if (index % 2 == 1) {
                index++;
                continue;
            }
            List<String> dataList = new ArrayList<String>();
            String[] dataArray = line.split("\\s+");
            for (String data : dataArray) {
                if (data.trim().length() > 0) {
                    dataList.add(data);
                }
            }
            result.add(dataList);
            index++;
        }
        return result;
    }

    public static List<List<String>> loadInputs(String fileName) {
        List<List<String>> result = new ArrayList<List<String>>();
        List<String> lines = FileUtil.readLines(FILE_ROOT + fileName);
        for (String line : lines) {
            List<String> dataList = new ArrayList<String>();
            String[] dataArray = line.split("\\s+");
            for (String data : dataArray) {
                if (data.trim().length() > 0) {
                    dataList.add(data);
                }
            }
            result.add(dataList);
        }
        return result;
    }

    public static List<String> loadInputLines(String fileName) {
        return FileUtil.readLines(FILE_ROOT + fileName);
    }

    public static void writeOutputs(String fileName, List<String> lines) {
        FileUtil.writeLines(FILE_ROOT + fileName, lines);
    }
}

import java.util.*;

public class CodeJam2 {

	
	public static void main(String[] args) 
	{
	Scanner input=new Scanner(System.in);
	int types=input.nextInt();
	for(int i=0;i<types;i++)
	{
	int count1=0,count2=0;
	int n=input.nextInt();
	int array2[]=new int[n];
	int surprise=input.nextInt();
	int p=input.nextInt();
	for(int j=0;j<n;j++)
	{
	array2[j]=input.nextInt();
	}		
	int array1[][]=new int[n][3];
	for(int j=0;j<n;j++)
	{
	array1[j][0]=array2[j]/3;
	int t=array2[j]-array1[j][0];
	int c1=t/2;
	int c2=t-c1;
	if(array2[j]!=0)
	{
	if(c1-c2==0)
	{
	if(p-c1==1)
	{
	if(count1<surprise)
	{
	count1++;
	count2++;
	array1[j][1]=c1--;
	array1[j][2]=c2++;
	}
	else
	{
	array1[j][1]=c1;
	array1[j][2]=c2;
	}
	}
	else if (p-c1==0)
	{
	array1[j][2]=c2;
	++count2;
	array1[j][1]=c1;
	}
	else if(p-c1>1)
	{
	array1[j][1]=c1;
	array1[j][2]=c2;
	}
	else if(p-c1<0)
	{
	array1[j][2]=c2;
	++count2;
	array1[j][1]=c1;
	}
	}
				
	else if((c2-c1)==1)
	{
	if(p<=c2)
	{
	array1[j][2]=c2;
	++count2;
	array1[j][1]=c1;
	}
	else 
	{
	array1[j][2]=c2;
	array1[j][1]=c1;
	}
	}
	}
	else{
	if(p==0)
	{
	++count2;
	}
	}
	}
	System.out.println("Case #"+(i+1)+": " +count2);
	}

	}

}
