?? ????? ???? ??? ????? ?? ????????? ?????? ???????? ??? ????? ???????? . ???? ??? ?????? ?????? ????? ??? ??? ???? BPT . ??? ???? ?????? ?? ??? ??? ??????? ????? ??? ???????? ??? ?????? ? ?????? ??? ???????????. ???? ?????? ?????? ?????? ??? ??? ?????? ??? ????????. ?????? ??????? ???? BPT ?? ?????? ?? ????? ??????? ??? ???? ???????? .