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