???? ????? ???????? ?? ?????? ?????? ???? ?????? ??? ????? ?? ???? ????? ????????. ????? ??? ??????? ??????? ???? ?????? ??? ??????. ???? ??????? ??????? ??????????. ????? ?????? ?????? ?????? ???????. ???? ??????? ??????? ????? ????? ?? ???????? . Selecting ???? ????? ??????? ??? ????? ???? ?????? ??? evaluate ??? factors. Begin by, de