using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string argv = "-help=none\n-URL=(default)\n-password=\n-uname=Khanna\n-p=100";

        string result = Regex.Replace(argv, @"(password=)[^\n]*", "$1********");

        Console.WriteLine(result);

    }

}