?????? ?????? ???????? ?????? ???? ???????????????? ?????????? ????? ???????? ?????? ??? ????????? ????? ?????? ??????? ??????? ?? ??? ??? ???????? 10 ?? ??????? ?? ?????? ??? ??? ???????? ?????? ???????? ??????? ?????? ?????? ??? ??? ??? ???????????? {?????????????. {??????????? ??????? ??? ???? ????????? ????????? ???? ???????????????