--ini-enunciat

>>> from zombie import moviments_zombie

>>> l1 = [(6, 8), (6, 10), (10, 10), (10, 4), (5, 4)]
>>> it = moviments_zombie(iter(l1))
>>> for t in it:
...    print(t, end='-')
('N', 2)-('E', 4)-('S', 6)-('O', 5)-
>>> next(it, 'final')
'final'

--fi-enunciat

>>> l2 = [(2, 4), (6, 4), (6, -5), (10, -5), (10, 15), (2, 15), (2, -3), (4, -3)]
>>> it = moviments_zombie(iter(l2))
>>> for t in it:
...    print(t, end='-')
('E', 4)-('S', 9)-('E', 4)-('N', 20)-('O', 8)-('S', 18)-('E', 2)-

>>> l3 = [(0, 0), (8, 0), (8, 9), (-7, 9), (-7, -10), (-7, 5), (-7, -9), (-11, -9), (-11, 3), (-2, 3), (-2, -8), (-1, -8)]
>>> it = moviments_zombie(iter(l3))
>>> for t in it:
...    print(t, end='-')
('E', 8)-('N', 9)-('O', 15)-('S', 19)-('N', 15)-('S', 14)-('O', 4)-('N', 12)-('E', 9)-('S', 11)-('E', 1)-