udah udah balik balik
udah udah balik balik !
u d a h WORD_BOUNDARY u d a h WORD_BOUNDARY b a l i k WORD_BOUNDARY b a l i k WORD_BOUNDARY
u d a h WORD_BOUNDARY u d a h WORD_BOUNDARY b a l i k WORD_BOUNDARY b a l i k WORD_BOUNDARY ! WORD_BOUNDARY