Summer @ Brown App question

<p>Okay so I'm applying to this College Prep Program at Northwestern University and I planned on applying to Summer @ Brown incase I didn't get into CPP.
Unfortunately, I realized that both the early applications are due around the same time (CPP-Feb 27, Brown-March 1). CPP costs $50 to apply and Brown costs $40. If I pay for both that's $90 and I can only choose one program. (I'm done with both applications, i just need to get teacher recs and send them).
So should I apply to one of them first and wait for their reply? or should I apply to both?
I'm not sure which one I want to go to more so i was thinking I'd apply to both and then decide after i was into both. I just don't want to waste like $50 on an application to a program I won't attend.
help!! I'm terrible at making decisions!</p>

<p>ooh and if i do get into both, do i send something back to the one i decide not to go to saying that I won't be attending?</p>