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It's a way to make your code more readable. Putting your code between code here formats it so other people can read it.

Sure. Just make sure it's in SSCCE form, and we'll be more than happy to answer any specific questions you have about it. Don't forget the highlight tags.

We aren't going to do your work for you. Post an SSCCE and a specific question about what's confusing you, and we'll try to help you.

And which part of this is giving you trouble? What have you tried? Where are you stuck?