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