???? ?? ????????? ??? ???? ?? ???? ????? ??????? ??????. ???????? ???? ???? ??????? ???????, ?????? ??????? {?????? ? ??????? ?? ???? ??????. ???? ?? ??? ?????? ??? {???? ??? ???? ??????, ?????? ???? ??? ??? ??? ??????. ?????? ?????? ?? ??????? ???? ?????? ???? ???? ??????? ???????: ????? ?