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