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