No.1 ??? ???????? ??? ???? IOI997 ???? ?????? ???? ????? ????????? ????? ???????? ????????. ???????????? ??? ?????????? ??????? ?? 24??. ???? ?????????? ??? ???????????? ??????????????????????? ????? ?????? ??????????? ?????? ??? ioi997 . ????????????????? ?????????? . ??????????? ?????? ??? ???????? ???! ??? ????? ioi997 ????????? ????