unusual Shape to be drawn in solids

Can anyone help me?

  I am working on a project (using autocad 2011)  that has a building with a two way sloping roof. What i am trying to do is draw a shape in 'solids' that replecates the shape of this building.

 Is it possible to create a six faced shape with 4 different vertical co-ordinates. a flat bottom, 4 different shaped sides, and with top face sloping from east to west, and north to south?

Cheers

Brian. 

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