???? ???????(????)????????????? ???? ????????.??????? ???? ??? ???????????? ???????? ??????????. ??????? ???? ??????????.????? ???? ?? '??????' ?????????? ?? ???????? ???? ?? ?????? ???????? ?? = ????&??????®???? ????????: ??? ?????????????????·???), ?????? ?? ?? ???? ??????????????(?? ??????????, ?????????????????) ???? ?? ????It is rather diffi