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