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