The creator of this system goofed. He wants to prove the the XXX olympics is actually the 666 olympics. But he decided, arbitrarily, that each X represents the letter "X" in the english alphabet thus making the title "XXX olympics" something similar to the annual porn awards in vegas with athletics feats thrown in.(Insert your own jokes) We all know thats not what the "X's" stand for thus the creator has introduced the rule of "completely making **** up."
I disagree because of what I typed above. He did not start with letters he started with "decem" which is a number and then choose to say it was the actual letter "X." Its completely insane and I am not going to argue it further so if you disagree then we will just have to shake hands and leave it at that.
ETA: I guess he actually started with "triginta" or 30 and then broke it down but now I have wasted too much time on this!