?????? ?? ???? ?????? ???? ???????? ????????? ????? ??????? ???????? ????? ???? ???? ???????? ????? ???? ???? ??? ?????: ????? ???? ???? ???? ?? ????? ??? ????????? ????? ???????? ???? ?? ????? ?????? ????? ???? ????? ??? ??????? ????? ????? ??????? ???? ????? ???? ?? ??????? ??????? ( ??????? ? ???? ? ????? - ????? ?????? ). ??? ??????? ??????