???? ?? ????? ??????????? ??? ??? ??????????? ?????????. ???? ?? ???????? ?????????? ?? ?????? ???? ??? ??? ?????? ? ??? ????????, ????????? ???? ?????? ?? ?? ????? ??????? ??????.Just take your time and effort. Study and analyze just one chapter at a time. Utilize Everything you find out. And when you're feeling you've the methods up and operating