C31232233133313221211113313331333132313331322121111123121111121111123213311   >>    C3123223313331322121111331333133313231333132212111112312111112111112321331   <<    C31232233133313221211113313331333132313331322121111123121111121111123213313   >>      C31232233133313221211113313331333132313331322121111123121111121111123213312   >>