using System;

using System.Threading;

public class Program

{

    static bool connection = true;

    static bool fileAvailable = false;

    int minutesPast = 0;

    public static void Main()

    {

        WaitForSomethingOnServer();

    }

    public static void WaitForSomethingOnServer()

    {

        for(;;)

        {

            if(ConnectionToServer())

            {

                if(connection){

                    if(fileAvailable)

                    {

                        break;  

                    }

                }

            }

            else {

                minutesPast++;

                Thread.Sleep(60);

                if (minutesPast){

                warning;

                }

            }

        }

    }

    public static bool ConnectionToServer()

    {

        // Check dingen

        return connection = !connection;        

    }

}