??????? ??? ???????? ??? ioi997 ??? ?? ???? ???????????? ??????? ????? ????????? ????????. ????? ??? ??????????? ??????? ?? 24??. ???? ?????????? ??? ???????????? ??????????????????????? ????? ?????? ??????? 24 ?? ??? ioi997 .??????????????????? ?????????????? . ???????? ????? ??? ????????? ???! ??? ????? ioi997 ????????? ???? ????????