????? ???? ???????? ???????: ????? ???? ????????? ???? ??????? ??? stc ?? ??? ????????? ?????????? ????? ??????? ?????? ???????? ??????? ????? ???????? ?? ??? ????? ?? ???? ??????? ???? ???? ???? ??? ????? ????? ?????? ?? ????? ??????. ???? ??? ???? ???? ????? ?????? ???? ??????? ??? ???????? ?? ??????? ??????? ???????? ??????? ?? ?????? ????? ?