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