Thanks, Dan, I will go through the tutorial. I guess, I don't feel
motivated to spend time on the bit shift. In several years of working
in oo programming, mainly in C++ and some in
Java, I have never
had the need to do this bit shifting stuff and feel it is quite
useless in real world. I remember doing all this in my first C class
long time ago but since then it has just been a blurr memory. But
if you think it is necessary to pass the exam, I guess, that should
be the motivation to relearn it. Thank you again for the reply as well
as the wonderful site. Your exam are excellent.