?????? ?????? ??????? ??? ???? ????????? ????????? ???? ?? ??????? ??? ??????? ?????? ????? ???????? ??? ? ?????? ????? ???? ??? ???? ???? ??????? ??????? ??????? ?????? ????? ?????? ??? ?? ? ??? ???????? ???????? ?????? ????? ?????? ?????? { ?????: ????? ???? ??????? ???? ???? ? : ???? ?????? ??????? ??????? ???? ???????? ????