 What's up guys, mine's Michael and welcome to my YouTube channel. You know what, we're going to do another decode grind. We're going to do the next problem, which is two lowercase. Two lowercase is basically just convert the string to its equivalent lowercase. So let's read the problem right here. And we'll let it function two lowercase to have the string parameter str and return the same string and lowercase. So how do we do this? Well first, it's pretty simple actually. We're going to go through every single character inside the string. And what are we going to do? Every single character in the string, if it's an uppercase, we're going to change the lowercase. I don't do that, but let's see. We're going to look at the ASCII table. And if you basically ask the table, it's just a form of representing every single character and it's equivalent number value, right? So we basically could check if it's an uppercase or a lowercase based on the number value. So if we just check if it's greater than equal to 65, because that's A and that's going to equal to 90, that's B. And that's not B, that's Z. That means that it is an uppercase because all the letters that represent it, as you can see here, A is uppercase, and that's 65. So if it's between 65 and 90, as you see here, all these are uppercase, we're going to convert it to its equivalent to lowercase. So if the character is TR at I, which is greater than or equal to 65, and is TR at I, which is less than or equal to 90, we got to change it to its equivalent lowercase value and what is that? 65 minus, so 97. So 65 is uppercase A. If you want to convert it to lowercase A, you got to add it by a certain value. You got to convert it to 97. So what is that? 97. 532, so we're going to add that value. SCI. We're going to convert it to SCI, 32. SCI, we're going to convert it to SCI. It should ideally work, but I'm not sure. I'm not 100% sure about this. I'm not 100% sure. It should work. So here it says the color became yellow. And it was expected, accepted, 100% faster. Yeah, that's basically how you do two lowercase. It's pretty basic. This video is pretty short. Yeah, that's how you do two lowercase.