?? ???? ?? ??????? ????? ??? ???? ?????? ?????????? !???? ??? ?????? ???? ?? ?????? ?????? ?????? ??????! ????? ????? ???? ???????: ????? ???? ???? ??? ??????? ????? ?? 50% ??? 70% ?? ???? ??? ??????? ???? ???? ??????? ??? ?????? ????? ??????? ???? ?????? ??? ????? ????? ??????? . ????? ??? ???? ?????? ???? ??? ????? ??????