kamu udah bisa kali+kalian
kamu udah bisa kali kalian ?
k a m u WORD_BOUNDARY  u d a h WORD_BOUNDARY b i s a WORD_BOUNDARY k a l i WORD_BOUNDARY k a l i a n WORD_BOUNDARY
k a m u WORD_BOUNDARY u d a h WORD_BOUNDARY b i s a WORD_BOUNDARY k a l i WORD_BOUNDARY k a l i a n WORD_BOUNDARY