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