what's with all these "beginner's questions"?
First step to learning advantage play is to buy a couple of books, and then _read_ them. Particularly the book that covers your particular chosen counting system. For Hi-Lo, buy Wong's pro BJ. Etc. You need to read first, then all these short simple questions won't be necessary...
Another choice is to look at "the blackjack school online". All Free. Answers most questions, gives lots of Hi-Lo playing indices, etc...