?????? A ?-?????? ????? ??????? ????, ?? ?? combined ?????? ??? ?????? ????? ?????? ?????? ??????. ???? ????? ?-????? ?? ???????? ???, ?? ??? ?????? ???? ???? ?? ?????? ??? ???. ?????? A ??? ???? ?????? ????? ?? ??????, ????? ??????, ??????? ??????(B3) ???? ?????? ?? ??????, ?-??????} ????? ?-????? ????. ?????? ?????/??????/????? ??????