ref: dea51cc9b0c9b24d981d7f5eca939f0f3b39dfa2
dir: /examples/read+write.orca/
......................................... .#.READ.WRITE.#.......................... ......................................... ......................................... ......................................... ......C4.........C2..........C4.......... ......10O1230...013Q1234.....13T1230..... ........1.......12345678.......1......... ......................................... ......................................... ......C4.C4......C2..........C4.C4....... ......10X1......013G1234.....13P1........ ........1230.......1234........1230...... ...................1234.................. ......................................... ......................................... .........................................