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