using System.Collections.Generic;
using System.Diagnostics;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        private static async Task A()
        {
            for (;;)
            {
            }
        }


        private static async Task B()
        {
            Trace.TraceInformation("B - Started");
        }

        static void Main(string[] args)
        {
            var tasks = new List<Task> { A(), B() };
            Task.WaitAll(tasks.ToArray());
        }
    }
}