~cpp 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

/*
 * Created on 2005. 1. 4
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

public class TheTrip {
	int studentNum;
	double [] money;
	double average;
	double movedMoney;
	
	public int inputStudentNum() {
		studentNum = (int) inputNum();
		return studentNum;
	}

	private double inputNum() {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		double num = 0.00;
		try {
			String line = in.readLine();
			num = Double.parseDouble(line);
		} catch (IOException e) {
			e.printStackTrace();
		}
		return num;
		
	}

	public double[] inputMoney() {
		money = new double[studentNum];
		
                  for(int i = 0; i < studentNum; i++) {
                   	money[i] = inputNum();
                   	while (money[i] > 10000.00) {
                   		System.out.println("$10000.00을 넘을수없으니 다시 입력해");
                   		money[i] = inputNum();
                   	}   	
                  }
		
		return money;
	}

	public double setMovedMoney() {
		for(int i = 0; i < money.length; i++) {
			double difference = money[i] - average;
			if (difference > 0) movedMoney += difference;
		}
		movedMoney = convertToTwoDigits(movedMoney);
		 
		return movedMoney;
	}


	public double setAverage() {
		double sum = 0.00;
		for(int i = 0; i < money.length; i++)
			sum += money[i];
		
		sum = convertToTwoDigits(sum);
		average = convertToTwoDigits(sum / money.length);
		
		return average;
	}
	
	public double convertToTwoDigits(double aNum) {
		aNum *= 100;
		aNum = Math.ceil(aNum);
		aNum /= 100;
		return aNum;
	}
	
	private void printResult(ArrayList list) {
		for(int i = 0; i < list.size(); i++) {
			Double num = (Double) list.get(i);
			System.out.println("$" + num.doubleValue());
		}
		
	}
	
	static public void main(String [] args) {
		
		ArrayList list = new ArrayList();
		while(true) {
			TheTrip trip = new TheTrip();
                           int student = trip.inputStudentNum();
                           while (student >= 1000) {
                            	System.out.println("학생수는 1000명을 넘지 않으니 다시 입력해");
                              	student = trip.inputStudentNum();
                            }
			if (trip.studentNum == 0) {
				trip.printResult(list);
				break;
			}
			trip.inputMoney();
			trip.setAverage();
			trip.setMovedMoney();
			Double num = new Double(trip.movedMoney);
			list.add(num);
		}
	}
}