???? ???? ????? ????? ??? ???? ?????? ??????? S N 168 ????????? ????????? ??? ?????? ! ?? ?????????? ?????? ???? ??????? , ????? ?????????? ?????? ???? ??????????? ?????? ?????????? ????? ?????? ???????? ???????? ??? SN168 . ???????? : ????! ?????? ???? ??? ??????? ?????! ???????????? ??? SN168, ?????? ????????????????!!! ???????