using System;

using System.Threading.Tasks;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        LoadData().Wait();

    }

​

    public static Task<int> Dummy()

    {

        Console.WriteLine("Running");

        return Task.FromResult(0);

    }

​

    static Dictionary<string, Task> TaskController = new Dictionary<string, Task>();

​

    public static async Task LoadData()

    {

        Task<int> task5 = Task.Run(async () => { await Task.Yield(); return await Dummy(); });

        TaskController.Add("a", task5);

        Console.WriteLine("Starting");

        await task5;

        TaskController.Remove("a");

        Console.WriteLine("Done");

    }

}