ref: 733ee3ae99e43ecc89ad5c0b6005dc413e52c299
dir: /examples/cycle.orca/
......................................... .#.CYCLE.#............................... ......................................... ......................................... ......................................... ......................U.................. ...............U......................... ................N........................ ......................................... ......................................... .......................U................. ................U........................ ......................................... ......................................... ......................................... ......................................... .........................................