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