????? ????????: ???? ??????? ??? ??? ??????? ??? ?????? ????????? ???? ???? ????? ???????? ??? ??????? ?????? ??????? ??????? ???, ?? ???? ??????? ?????????, ???????? ??? manipulative ?????????? ????? ??? ??? ???? ??? ???? ?????? ????????????? ????? ? ???????? ?????????, ???????????? ?? ?????????? ?