?? ????? ??????? ??????? ??????? ?????? ??? ?????. ???? ?? ??? ????? ??? ?????? ??? ???? ??????? ???????? ? ????? ??? ????????? . ????? ????? ??? ????? ?? ???? {??????? ???????? ?? ?? ???? {??????? ???????? ???? ??? ???? ??????. ????? ???????? ??????? ????? ??????? ?????? ??????. { ?????