Hello world! I'm talking about. The @ symbol and the backslash \ in C sharp. I have a program here and I want to display hello backslash world. But there's a little red squiggle here. And you can see the error message says unrecognized. Escape Sequence. And if I run. I get an error message. And it won't work. The Backslash is an escape sequence indicator. And it means to. Perform whatever special action. W would be, but W doesn't have any meaning if I had backslash n. \n That's squiggle would go away. And it would try to do a line feed, well, we can't really do a line feed. in the title of the form. So let's see what happens there. And it simply. Left out the slash all together. And that wasn't what I wanted. So what I could do would be a. slash slash [backslash]. And that would be. While the backslash is normally An escape sequence that means to treat this. Just the way it is, so if we do that. You can see now it says Hello backslash World which is what I wanted to do in the first place. There's another way to do that and I'll just. Leave the \ or whatever else you wanted in there. And put this @ in front and the @ says to ignore any Escape sequences and just treat this as a literal. So if we do that. We also get Hello backslash World. So that's what those two things do. And that's it for now.