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