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