???? ???? ??? ??????? ???? {??????{ ?????? ????? ?????? ????? ???? ????? ??????? ??????? ????? ??????? ?????? ???? ?????? ???? ??????? ????? ????? ?????? ???????????? ??? PDF ????? ?? ???? ???? ????? ?????? ??? PDF. ?? ??? ??? ?????????? {?????? ??????? ???????|??????? ?????? ???? {???? ??????, ?? ????? ???? ?????? PDF ???????????? ????