???????????? ??????? ???????? ????? ????? ????? ???????????? ??????? ???? ????? ??? ?????? ??? ??????? ??? ??? ???????????? ??????? ?????? ?????????? ??? ??? ???????? ???????? ??? ????, ???? ?? ?????? ??? ???????? ??????? ?????? ????While in the clean boring approach, we typically accumulate two types of samples at different depths of a uninteresti