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