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