????? ???????? ??[???????] ?? ??????? {??? ??? ????? ?????? ??????. ??? ??? [???????] ? ???patterns ?? ?????. ????? ???????? ???????. ???? ??? ????????? ?? {????????? ????? ?????.. ???? ?????? ???????? ?????? ?????? . ???? ??? ???????? ??? ??????? {?? ???? ????????. ???? ????? ??????? ?? ????? ?? ???? ??????? ? ????? ???? ????? ????