040000 tree 685c4f89d05e2bf0361685041605debdb6675c13	engine
040000 tree 16927538a54cc42f633e3924a76b0e88a15b0b1d	intrinsics
040000 tree c2acaa258b23929ea7e79787a68fd3e0a6b76298	prelude
040000 tree b1623f415562359f02b9632e1c3a65b8d4094d13	stdlib