???? ????? ???????? ?? ?????? ?????? ???? ???? ??? ??????? ?? ???? ??? ????????. ????? ??? ??????? ??????? ???? ?????? ??? ???????. ????? ??????? ??????? ?????????. ????? ????? ?????? ?????? ?? ???????. ???? ??????? ??????? ????? ????? ?? ???????? . Selecting ???? ????? ??????? ??? ????? ???? ?????? is important evaluate ??? ?????. Fi