?? ???? ?? ????? ????? ????? ?? ?????? ??? ??? L ???? ?? ?????? ????? ?? ???? ???? ?????? ???? ?????. ???? ?????? ????? ?????? ?????? . ??????? ?????? ?????? ????? ????? ????? ????? ???? ????? ????? ???? ??????? ?? ???? {???????? ???????? ??????? ?? {?????? ????????, ??? ????? ?????? {???? ? {???? ????? . ??? ??????? ??????? ????? {??????