using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(FormatNumber(56700));

        Console.WriteLine(FormatNumber(34567.25));

        Console.WriteLine(FormatNumber(-34567.25));

        Console.WriteLine(FormatNumber(0));

    }

    public static string FormatNumber(double number)

    {

        CultureInfo inr = new CultureInfo("hi-IN");

        return string.Format(inr, "{0:#,#}", number);

    }

}