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