After some Googling, I found this document online.
According to that link:
23300 = 22215 + 20700 + 22400 + 22900 + 23100 + 23200
AND
23400 = 15000 - 23300
My return shows all those numbers except for 23300 so with those two functions, we should be able to compute 23300 and verify it is correct.
I hope this helps!
