Strange Order

import java.util.Scanner;

public class StrangeOrder2 {
    public static void main(String[] args) {
        Scanner myScan = new Scanner(System.in);
        String[] numbers = myScan.nextLine().split(",");
        String output = "";
        for (int i = -1; i <= 1; i++) {
            output = updateOutput(output, numbers, i);
        }
        System.out.println(output.substring(0, output.length() - 1));
    }

    private static String updateOutput(String output, String[] numbers, int condition) {
        for (int i = 0; i < numbers.length; i++) {
            Integer number = Integer.parseInt(numbers[i]);
            if (number.compareTo(0) == condition) {
                output += (numbers[i] + ",");
            }
        }
        return output;
    }
}