???? ???? ????? ????? ?? ???? ??????? ???? ????? ??????? . ???? ???? ?????? ??????? ?? ????? ??????? ?????? ???????? . ????? ?? ????? ????? ??? ???? ????? ??????? ?? ???? ????? ???? ???????? . ???? ???? ????? ???? ???Highly skilled ?? ???? ??????? ? ????? ????? ??????? ???? ????????. ?????? ??? ??? ?????? ???? ????? ??????? ?? ???? ?????? ????????