?????? ???????? ??????? ?????????? ???? ?????? ?????? ?? ???????. ????? ??? ????????? ? ???? ???????? ??????? ???? ???? ?????????? ????? ???? ???? ?????? ???????. ????? ????????? ?? ?????? ????? ? ????? ??????? ??????, ??????? ?????? ??????, ???????? ??????? ??????. ????? ?????? ?????? ????? ????? {??????? PC ?????????? ?? ???????? ???????