How many diapers do I need?

just had my baby shower this weekend and I ended up with sooo many diapers. Can some of you mommies please let me know how many diapers in different sizes I may need? I understand that some babies don't even use the NB sizes. Here is what I was given (too many different packages so I just tallied them up) NB-296, Size 1-731, Size 2-272, Size 3-34. I would like to get an idea so I can exchange some now..some people did not give gift receipts so I need to figure all this out soon. We had almost 40 people at our shower and won't be able to find out who gave us these diapers & where they bought them from ( my siser in law noted on the invitations that anyone who brings a pack of diapers will be entered into a drawing..so I got a lot of nice gifts and too many diapers!!) any input would be really appreciated.