????? ???????? ???? ?????? {?|?|?] ?????? ????????. ?? ????, ????? ?????? , ???? ????? ???? ???? ????? ?????. ????? ??? ?? ??????? ??????? ?????? ?????? ?????? ??? ???? ????? . ????? ?????? , ???? ????? ?? ????? ???? ?? ??????, ??? ????? ?? ????? . ?? ??? , ??????? ?? ???????? ???????? ???? ????. ??? , ???? ???? ????? ?????? ???? ????????