???? ?? ???????? ???? ???? ?????? ?????? ????? ?????? ????? ?????? ????? ?? ??????????? ???? ???? ????? ????. ???? pipes? ??????? ? ?????. ????? ???? ?????????? ????? ??? ??????? ???? ?????? ???????? ??????? ???????? ?? ???? ????? ???????? ?????? ????? ?????? ??? ??? ???? ???? ??????. ????