using System;

using System.Threading.Tasks;

public class Program

{

    public static async Task Main()

    {

        var task = Task.Delay(2000);

if(await Task.WhenAny(task, Task.Delay(5000)) == task)

​

{

​

Console.WriteLine("task done");

​

}

​

else

​

{

​

Console.WriteLine("timeout");

​

}

    }

}