ref: 307928cf2e734cf11befa1c1d922930ae40f524b
dir: /examples/read+write.orca/
......................................... .# READ WRITE.#.......................... ......................................... .........C4..........C4.................. .........30O1230.....34T1230............. ...........0...........0................. ......................................... ......................................... .........C4.C4.......C4.C4............... .........30X3........34P7................ ......................................... ......................................... .........................................