ref: 9b15b51c3f5dc2e67e1e123892b88d8b8f0c6d80
dir: /examples/sync.orca/
....................... ....................... ....a7O................ ......58TC............. ....a5O................ ......56TC............. ....a3O................ ......54TC............. ....a1O.C.......C8..... ......52TC......6...... ........C.............. .......................