“???????? 2 ??? ?????? ????? ?? ?????? ???????? ???? ???????? ?????????????????? ??????????? ?????? ????? ???????????? ?????? ???????????????????? ??? similar to a ????????????????? form of rub.” ?? 2 ???????????{?????????? ??????????? ??? ???????? ??????? . ???????????? ????????????? ???????????? ???????? ??? know How to ????????? ??????? ???