 For the Circuit Python Parsec today, I wanted to talk about iterating incrementally using a pair of loops. So what am I talking about? It's easiest to just look at the demo here. You can see I am lighting up sets of neopixels. So you'll see when it when it restarts here in a second, we're going to start with just one neopixel. It's off. One, two, one, two, three, one, two, three, four, one, two, three, four, five. So this is a type of count up that sometimes you need to do. How do you do it? Well, it's actually done by just embedding one loop inside of another. So if you look at my code here, I'm doing a few things. First of all, I'm importing some libraries like time board for pin definitions, neopixel, and the rainbow IO color wheel. I've set a hue there 90, which is the screen I'm using. And then I've set a number of LEDs. I set up the LED object on the board for the neopixels. And then when I am running through the main loop here, what happens is I have a maximum count. And that is how many we can get up to with each set of counting. And then inside of that loop, so it's going to start off as zero. The next time that loop that sort of bigger over loop runs is going to be a one, then a two, then a three and so on. Inside that loop, we have for the current LED another variable in the range of the max count, we will light up one of them. So the first time that stops on whatever the max count is, plus one, the next time it adds one to that the next time it adds one to that. And so this is a way that we can increment through something in steps inside of a loop. And that is your circuit Python Parsec.