import java.text.*;
public class DisplayWithCommas
{

    public static String number (long num)
    {
        DecimalFormat myFormatter = new DecimalFormat ("###,###,###");
        String output = myFormatter.format (num);
        return output;
    }


    public static void main (String[] args)
    {
        long value = -735135511;
        System.out.print (number (value));
    }
}