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