???????? ?????? ??????? ??? ??????, ??? ??????. ???????????? ????? ?????? ??????? ?? ???????, ? ????? ?? ??? (4 ?). ?? ?????? ????? ???????? ????? (4 ?) ? ????????? ????? ??? ?????? ????? ?????? ??? ?????, ??????? ?????? ????? (4 ?). ????? ?????? ???????? ??? ??????????????? ?????, ? ????? ???????? ? ??????? ????? (4).