???????? ?????? ??????? ???? ?????? ???? ?? ??? ?????? ??????? ????? ????????? ? ???????? ?????? ???? ???????? ????? ???????????? ?????? ??????? ??? ????? ??? ???????? ???? ????? ????? plc? ????? ??? ????? ? ???????? ?????? ??????? ??????????? ?????? ??????? ??????? ?????? ????? ???? ? ????? ????? ????? ????? ???????? ??????? ????????????? ???? ???