???? ??????? ????? ?? ???: ???? ???? ?????? ?????1) ???? ??????? ????? ????? ?? ?????? ?????? ?????? ?????? ?????? ????? ?????? ?????. 2) ?? ???? ????? ???? ??????? ??? ??????? ?????? ???? ???????? ?????????. 3) ?????? ?????? ??? ???? ??????? ?????? ?? ???? ???????? ????? ?????? ???? ??????? ?????. ????? ??????? ???? ??????? ?? ????1) ???? ?????