?????? ?????? ???????? ?????? ?????? ????????????. ???? ?????? ???? ????????? ?????? ?? ???? ???? ?????? ????????????.????: ????????????? ??????.(??~ ?????? ???? = ??~ ?????? ????)???? ?? ???????????? ??????????????? ?????????????????????????? ???? ?? ????? ??, ????, ??????? ?? ???????????? ?? ?????? ????????????????? ???????? ???????? ???? ???? ??