Parentheses

Description

I found a lot of parenthesis when I was cleaning my attic. Since I had no use for them, I threw them all in this little scheme program. It seems to have obfuscated my code a bit though, I can't seem to figure out what it does... Can you help me out here?

Given files

mystery.rkt

Flag

IG{ImAllOutOfParenthesisNow:(}

Solution

The solution can be found in reverse.rkt