Front is Front or your engine is dead.
They are not marked top and bottom as they will work either way depending on which side of the block you are working.
Play with it for a few minutes and you will figure it out.
Also not the big water holes in the gasket, they are always on the other end of the gasket from the "Front" markings. That is so the water will flow to the back of the block, up to the head, then forward. that last part is very necessary to keep the head cool.