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