no funcionan las pilas
no funcionan las pilas .
n o̞ WORD_BOUNDARY f u n s i o̞ n a n WORD_BOUNDARY l a s WORD_BOUNDARY p i l a s WORD_BOUNDARY
n o WORD_BOUNDARY f u n c i o n a n WORD_BOUNDARY l a s WORD_BOUNDARY p i l a s WORD_BOUNDARY . WORD_BOUNDARY