PROGRAMAS EN PYTHON(PY) DE COLAS (QUEVE)

>>> pila = [6,7,8]
>>> pila.append(9)
>>> pila
[6, 7, 8, 9]
>>> pila.pop()
9
>>> pila.pop()
8
>>> pila[-1]
7

>>> from collections import deque
>>> cola = deque([1,2,3])
>>> cola.append(4)
>>> cola
deque([1, 2, 3, 4])
>>> cola.popleft()
1
>>> cola.popleft()
2
>>> cola
deque([3, 4])

filas de colas