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