ref: 3c4abe6f3a3536a73a392d17cb2d9cb3521be5ab
dir: /examples/variable.orca/
......................................... .#.VARIABLES.#........................... ......................................... .#.WRITE.#............................... ......................................... .aV1.bV2.cV3............................. ......................................... .#.READ.#................................ ......................................... ..Va..Vb..Vc............................. ..1...2...3.............................. ......................................... ......................................... ......................................... ......................................... ......................................... .........................................