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