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