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Hi guys, this is rprentki with the second of the practice cubes that come after the tutorials.

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Let's get started.

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This one looks like it's a nice long thin one, so we might get some cool branches coming off of it.

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Oh, look, there's a little piece right there, 

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and you want to remember that once it hits the side of the cube, you want to continue until it disappears off the side of the cube.

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Because once in a while, these can run along it for quite a ways.

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And, so, it's broken up into several little pieces right now.

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So we just have to make sure that they all disappear.

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And it looks like this one right here might continue on.

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So let's turn this around and take a look.

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See how that's growing right out of there?

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Looks good, let's continue on.

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We're going the wrong way, so let's go back.

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And it look's like that one just disappears.

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So that one was actually pretty easy, let's check our work.

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98% correct, great.