ref: 640c58cc289a23e6bc192b3e9bfd03d3b9339cf8
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.................. ......................................... ......................................... .........................................