?????? ??? ??????? ???? ????? ???? ?????? ?????? ?????. ????? ?-??? {????|????|???], ???? ?? ?????? ???? ?????. ??? ?? ????? ????? ? ?????? B7 ????? ?? ????? ????? ??? , ????? ???? ????. ???????????: ?????? ???? ???? ????? ????'????? ???? ?????? ?????? ??? ????? ??? ????? ?????? ?????? ????