???? ????? ???????? ?? ?????? ?????? ???? ???? ??? ??????? ?? ???? ??? ??????. ???? ??? ??????? ??????? ???? ????? ??? ?????????. ????? ??????? ??????? ?????????. ????? ?????? ?????? ?????? ?? ???????. ???? ??????? ??????? ??????? ???? ?? ??????. ?????? ???? ????? ??????? ??? ????? ???? ?????? is important consider ??? aspects. ?????,