??? ?? ??? ????? ???? ?????, ? ??? ????? ????? ??????. ??? ??????, ??? ??????? ?????? ?????? ??? ???. ????? ???? ?????? ???? ?? ????? ???? ????? ????? ???? ????? ??? ??? ????? ??????. ??? here ?-??????? ???? ?- X ????. ????? ??? ??? ?? {??????? ?|?????????? |???????|. {??? ???? ???????- {??????|??????? { |??????. {?????? ?? ????? ???? ????