????? ????? ???: ?? ??????? ????? ??? ?? ?????? ????? ?? ??? ??, ????? ???? ?? ????? ?? ??????? ?? ??? ?? ??????? ???? ??? ?? ???? ??? ?? ????? ?? ?????? ????? ??????????? ?????? ???????? ?? ???????? ?? ??????? ????: ??? ?????????? ?? ???? ???? ?? ?????? ???????? ???? ?? ???? ???? ????In advance of we dive into techniques, it is important to grasp