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