What does this relevance do?
The answer is now available below.
( concatenations of (characters it) of (if (it >= 65 AND it <= 90) then ( (it - 65 + 13) mod 26 + 65) else if (it >= 97 AND it <= 122) then ( (it - 97 + 13) mod 26 + 97) else it) of (hexadecimal integer it) of ( it as hexadecimal ) of characters of it) of ("What Does This Do?")
The above users had the right answer before it was provided below.
Answer (click to reveal)
The above relevance implements something known as “ROT13” which is a very poor form of “encryption” that only works with a 26 character alphabet, in which it is done a 2nd time to return the “enciphered” text back to the original. Read more here: https://en.wikipedia.org/wiki/ROT13