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