??????? ?? ?????: ??? ??????? ????? ?????? ??? ???? ????? ??????? ????? ????? ???? ??????? (?????) ??????? ??????. ??????? ?? ???????: ???? ??????? ??? ????????? ???? ???? ??? ???? ????? ??????? ???? ?? ????? ????? ????? ?????? ????? ?????? ?? ????? ?????? ????????. ?????? X ?????? ?????? ?????? X ?????? ??????? ??? ?????? ?? ????????: ??? ????