using System;

using System.Collections.Generic;

using System.Threading.Tasks;

​

public class Program

{

    static bool finished = false;

    static int bb = 0;

    public static void Main()

    {

        Test();

    }

    static void Test()

    {

        DoAsync();

        while (!finished) {

            for (int j = 0; j < 100000; j++) {

                bb++;

            }

        }

        Console.WriteLine(bb);

    }

​

    static async void DoAsync() {

        await Task.Delay(1);

        finished = true;

    }

}

​

​