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