Vector less or bigger than

Hi.

I'm trying to output a vector based on a vector made by range variables. I'm not sure how to start this so any help is appreciated.

My input vector 5x1 and I want one output vector to give me a 3x1 one vector based on values in my vector which is bigger than value a and one output vector which is smaller than a. See attached for more info.

I can kind of solve it but I want the output vectors to be 3x1 and 2x1 vectors with no zeroes.

Thanks in advance!