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