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