??????????? ???????????? ??? ???????????? ??? ??????? ?????????????? ???????????? ??? ????????, ????????? ?? ??????? ??? ?????? ??? ?? ?? ??????????? ?? ?????????? ???????? ??? ????!????? ??????? ??? ?? ??????? ??? ? ???????? ??? ?????????? ????? ????? ??? ?????? ??????????.This lesson will introduce you for the course, the prerequisites needed to