using System;

using System.Threading;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        Task<int> task = Task.Run(() =>

            {

                return CalculateResult();

            });

        Console.WriteLine(task.Result);

​

            Console.WriteLine("Finished processing. Press a key to end.");

            Console.ReadKey();

    }

    public static int CalculateResult()

        {

            Console.WriteLine("Work starting");

            Thread.Sleep(2000);

            Console.WriteLine("Work finished");

            return 99;

        }

}