? ???????? ?????? ???????? ????? ?????? ?? pdf  ???? ??????????? ??????? ???? ????????? ??? ????? ?????? ???????? ??????? ?????? ??? ????? ???????? ? ???? ??????????? ????? ??? ??? ?????? ??? ?? ???? ??? ?? ???? (????? ?????) ?? ???? ???? ??????? ???? ????, ??? ???% ??????? ??, ???? ???????