Task delay

using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.VisualStudio.TestTools.UnitTesting;


namespace Demos
{
    [TestClass]
    public class DelayingStartOfATask
    {

        [TestMethod]
        public void Example()
        {
            Task.Delay(5000).GetAwaiter().OnCompleted(() => Debug.WriteLine("a"));

            Task.Delay(6000).GetAwaiter().OnCompleted(() => Debug.WriteLine("b"));

            Task.Delay(7000).GetAwaiter().OnCompleted(() => Debug.WriteLine("c"));


            Thread.Sleep(10000);
        }
    }
}