What does Ezekiel 4:12 mean?

And thou shalt eat it as barley cakes, and thou shalt bake it in their sight with dung that cometh out of man.

And thou shalt eat it as barley cakes, and thou shalt bake it with dung that cometh out of man, in their sight.

And thou shalt eat it as barley cakes, and thou shalt bake it in their sight with dung that cometh out of man.

And let your food be barley cakes, cooking it before their eyes with the waste which comes out of a man.

A barley-cake thou dost eat it, and it with dung--the filth of man--thou dost bake before their eyes.

And thou shalt eat it as barley bread baked under the ashes: and thou shalt cover it, in their sight, with the dung that cometh out of a man.

And thou shalt eat it [as] barley-cake, and thou shalt bake it in their sight with dung that cometh out of man.