Awesome. So, again, the slight tweak that we get is right here in the second step, to where we're no longer focused primarily on adding ones. We're focused on saving zeros. I was teaching a class one time, and we were trying to figure out if this was long, like when I had first created the subnetting method, and we were trying to, and somebody was like, how do I remember that? You know, how do I remember when I'm going right to left or left to right and ones and zeros and I was like, I don't know, how can we remember, guys, to save the host bits and this guy from the back, he was totally random, he yells out, save the hosts! And we all kind of looked at him, we were like, what? And he goes, well it's kind of like, you know save the whales, you know, like save, you know, we have to save the hosts, so that became like the theme from there on out, is any time we saw one of these examples, it was like, ok, are we trying to add more networks or save the hosts? And everyone would yell out, save the hosts! So, I have been teaching in classrooms for a long time the subnet method, and it was funny because my wife, my wife actualy went to one of my CCNA classes early on, so I can say she's a CCNA sort of, just cause she attended the class.