print("--------------Queue----------------")
q = Queue(5)
q.add(1)
trrce(q)
q.add(2)
trrce(q)
q.add(3)
trrce(q)
q.add(4)
trrce(q)
q.add(5)
trrce(q)
print("first = ", q.first())
print("last = ", q.last())
print("isFull? ", q.isFull())
q.remove()
trrce(q)
q.remove()
trrce(q)
q.remove()
trrce(q)
q.remove()
trrce(q)
q.remove()
trrce(q)
print("isEmpty? ",s.isEmpty())
print("--------------BinaryTree----------------")
