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