???? ????? ???? ????? ?????? ????????? ????? ??????? ?????? ??? ????? ????? ????? ????? ????? ???????? ?????? ??? x ???? ??????? ???????? ?? ????????-??? ?????.. ??? ???? ??? ??? ??? ????? ?? ???? ???????????????? ???? ??? ????? ???? ??? ????? ????????? ?? ????? ????? ????? ??????????? - ???? ???????????????? ???????????????????? - ???????????? - ?