{???????????????????{?????????|?????????|??????????? ?????????? ????????????? ??? ???? {??? a| ???? | ????? | ???? | ??????? | ??? ??? ? ?????? |{?????????|????|?????????|??????????????????? ??????????? ??????????????????? ?? ????? ????? ??????? |??????????????? ???? ??????????{???|??|??|??|??|??|????? ????????????????? ???? ?? ???? ????? ?? ??????