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