using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Username: ");

            string username = Console.ReadLine();

​

            if (username != "Biggerfly")

            {

                Console.WriteLine("Wrong username.");

            }

​

            else

            {

                Console.WriteLine("Password: ");

                string password = Console.ReadLine();

​

                if (password == "Iloveyou3000")

                {

                    Console.WriteLine("I love you 3002.");

                }

                else

                {

                    Console.WriteLine("Wrong password.");

                }

            }

    }

}