using System;

public class Program

{

    public static void Main()

    {

         string ValidUsername = "user";

         string ValidUserpassword ="pass";

         string UserName ="";

         string UserPassword ="";

        bool ValidUserNameFlag = false;

        bool ValidUserPasswordFlag = false;

        bool ValidCredentials = false;

        string[] ValidUSerNames = new String []    {"user","bob",}; 

    }

}