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