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