public void INOUt()
{
CustomQueue test = new CustomQueue();
test.Enqueue(1);
test.Enqueue(2);
Assert.AreEqual(1,test.Dequeue());
Assert.AreEqual(2,test.Dequeue());
test.Enqueue(3);
test.Enqueue(4);
Assert.AreEqual(3,test.Dequeue());
Assert.AreEqual(4,test.Dequeue());
}