>>> from palindrom import palindrom

--ini-enunciat
>>> it = iter(['carrac', 'flor', 'sorros', 'ara', 'arbre', 'civic'])

>>> it1, it2 = palindrom(it)
>>> iter(it1) is it1
True
>>> iter(it2) is it2
True
>>> next(it1)
('carrac', 6)
>>> next(it1)
('sorros', 6)
>>> next(it1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration

>>> list(it2)
[('ara', 3), ('civic', 5)]
>>> next(it2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration

--fi-enunciat

>>> itm = iter (['ala', 'avio', 'minim', 'rajar', 'hola', 'refer', 'erre', 'rallar', 'estora', 'rossor', 'cinic', 'tururut', 'menjador', 'tapat'])

>>> itm1, itm2 = palindrom(itm)
>>> iter(itm1) is itm1
True
>>> iter(itm2) is itm2
True
>>> next(itm1)
('erre', 4)
>>> next(itm1)
('rallar', 6)
>>> next(itm1)
('rossor', 6)
>>> next(itm1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration

>>> list(itm2)
[('ala', 3), ('minim', 5), ('rajar', 5), ('refer', 5), ('cinic', 5), ('tururut', 7), ('tapat', 5)]
>>> next(itm2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration

>>> itr = iter (['alla', 'osso', 'aqui', 'selles', 'anilina', 'tirrit', 'vaixell', 'tarat', 'non-non'])

>>> itr1, itr2 = palindrom(itr)
>>> iter(itr1) is itr1
True
>>> iter(itr2) is itr2
True
>>> for p in itr1:
...    print (p)
('alla', 4)
('osso', 4)
('selles', 6)
('tirrit', 6)
>>> for p in itr2:
...    print (p)
('anilina', 7)
('tarat', 5)
('non-non', 7)