???? ???? ????? ??? ???? ???? ???? ???? ??????? ??? ???????? ?????????, ????? ??? ?????? ????? ?????? ??????. ????? ???? ????? ?? ??? ?????? ? ????? ???? ?? ????????? ???????? ????? ???? ?????. ??? ???? ?? ???? ??? ?????, ???? ?????? ??optimum. ???? 33% ?? ??? ??????? ??? ???????? ? ???????? ?????? ??????? ?? ??? ???? ????? ????? ??? ??? ??????