7? 4?, ????1??????? ???????????? ? ??? ??? ????, ?????? ??????? ?? ?? ????? ??? ???? ?????? ??? 10? 6??? ??? ??? 80??? ??? ??? ?????? ?????? ??? 4? ??? ???. ??? 12?? ??? ??? 80??? ????? ????. ??? ????? ?? ??? ??? ??? ???? ??? ????? ??. ??? ???? ??? ???? ???? ?? ???? ???(??? ??, ??? ??).