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How to multiplex a 3x3x3 led cube? Answered

Im going to make an led cube, probably going to start off with a 3x3x3, probably going to be controlled by and arduino or a pic microcontroller.  I know i have asked a couple wuestions about this but hear me out, pretty much know how to construct the led cube now, but i am still kinda clueless on the multiplexing part. I saw this one video on youtube that showed how to do it for a 4x4x4, but i tried using his method on a 3x3x3 and ended up using more I/O pins than he did. SO can someone show me something on how to multiplex a 3x3x3 led cube?