??????? bac 2??????? ????????? ??????? ?????????? ??????? ????????? ???????. ?????? ??????? ??????? ??????? ??? ????? ????? ?????????????? ?????? ????????? ????? ?????????? ????? ????? ????? ????????? ?????? ????? ?????????? ????? ????? ????? ????????? ??????? ?????? ??? ?? ???? ???????? ???????????? ?? ???? ??????.. ??? ???????? ?????? ???? ?????