?? ????? ?? ????? ??? ?????? ??? ??, ???? ???? ???? ???????? ???? ??? ??????? ????? ?????? ????? ? ?????? ??????, ???? ??????? ????? ????????? ? ???????????? ??????? ???? ?????? ??????????? ??????? ????? ????? { ??????? ????????? ???? ??????? ?????? ???? ????? ??????? ??????? ??? ??????, ??????