static void PutThenPick(LIFOQueue queue)
{
for (int i = 0; i < 100; i++)
{
queue.Put(i);
queue.Pick();
}
Console.WriteLine("ready");
}
static void Main(string[] args)
{
int theNumber = 0;
var queue = new LIFOQueue(100);
ThreadPool.QueueUserWorkItem((o) => PutThenPick(queue));
ThreadPool.QueueUserWorkItem((o) => PutThenPick(queue));
ThreadPool.QueueUserWorkItem((o) => PutThenPick(queue));
Thread.Sleep(1000);
Console.ReadLine();
}