ni kan kotak+kotak kan
ni kan kotak kotak kan ?
n i WORD_BOUNDARY k a n WORD_BOUNDARY k o t a k WORD_BOUNDARY k o t a k WORD_BOUNDARY k a n WORD_BOUNDARY
n i WORD_BOUNDARY k a n WORD_BOUNDARY k o t a k WORD_BOUNDARY k o t a k WORD_BOUNDARY k a n WORD_BOUNDARY