>>> from ops_cadenes import ops_cadenes

>>> l = ['madre','no','hay','mas','que','una']
>>> c = ['cutf','cutf','dup','cute','dup','cutf']
>>> ops_cadenes(l,c)
>>> l
['adre', 'o', 'hayhay', 'ma', 'queque', 'na']

>>> l = ['madre','no','hay','mas','que','una']
>>> c = ['cutf','cutf','dup','cute','dup','cutf']
>>> ops_cadenes(l,c)
>>> l
['adre', 'o', 'hayhay', 'ma', 'queque', 'na']
>>> c = ['dup','cutf','dup','dup','cute','dup']
>>> ops_cadenes(l,c)
>>> l
['adreadre', '', 'hayhayhayhay', 'mama', 'quequ', 'nana']
>>> c = ['dup','cutf','dup','dup','cute','dup']
>>> ops_cadenes(l,c)
>>> l
['adreadreadreadre', '', 'hayhayhayhayhayhayhayhay', 'mamamama', 'queq', 'nananana']