040000 tree 685c4f89d05e2bf0361685041605debdb6675c13	engine
040000 tree 66e8dfd1958dad21e4c5b9b83b588e8f5854e32b	intrinsics
040000 tree c2acaa258b23929ea7e79787a68fd3e0a6b76298	prelude
040000 tree 643589d08ab889f0aff4c866ba408eb1c144e62b	stdlib