using System;

using System.Threading;

public class Program

{

    public static void Main()

    {

        CancellationTokenSource sf = new CancellationTokenSource();

        TryStart(sf.Token);

    }

    public static void TryStart(CancellationToken sftoken)

    {

        CancellationTokenSource reint = new CancellationTokenSource();

        CancellationTokenSource linkedCts =

              CancellationTokenSource.CreateLinkedTokenSource(reint.Token, sftoken);

        Console.WriteLine("Cancelled status, sf:" + sftoken.IsCancellationRequested + " reint:" +reint.Token.IsCancellationRequested + " overall:" + linkedCts.IsCancellationRequested);

        reint.Cancel();

        Console.WriteLine("Cancelled status, sf:" + sftoken.IsCancellationRequested + " reint:" +reint.Token.IsCancellationRequested+ " overall:" + linkedCts.IsCancellationRequested);

    }

}