??? ??? ??? ??????? ?? ?????? ????????????????? ???????? ?? ???????? ????? ?? ?? ????? ?????????? ????? ??? ??????? ?????? ????? ?????? ????????????????? ·?? ??? ·?????? ??? ·????????? ·??? ??????????????? ?????????? ????? ?????????????? ??????, ?? ????????????? ????? ?????? ??? ???? ???????????????.?????????? ???C S R · ????????two??? ??????S