040000 tree 6b25d8798f81c437c2ad384256d16f4639d197f2	engine
040000 tree 1684be786f3a277c31574f0e00aae0fbaf453660	intrinsics
040000 tree c2acaa258b23929ea7e79787a68fd3e0a6b76298	prelude
040000 tree 993677e373ad4deeeb6f79407f19dd6c110c89ce	stdlib