2 Name: A.I.d.A !ao.AgYdRoo : 2015-08-15 03:30 ID:ayWd75QB [Del]
That person probably spent a really long time making passwords until they found that one, or got lucky. I don't know that it's possible to make a custom code.
Somebody could have shared that code somewhere as well.
In the past I did a search on how to reverse-engineer the passwords, but I didn't come up with anything particularly useful.