using System;

using System.Threading;

using System.Threading.Tasks;

​

public static class Program

{

    public static void Main()

    {

        CancellationToken token = new(canceled: true);

​

        Task taskSync = Task.Run(() => token.ThrowIfCancellationRequested());

        Task taskAsync = Task.Run(async () => token.ThrowIfCancellationRequested());

        try { Task.WaitAll(taskSync, taskAsync); } catch { }

        Console.WriteLine($"taskSync.Status: {taskSync.Status}");

        Console.WriteLine($"taskAsync.Status: {taskAsync.Status}");

    }

}

​