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