C31232233133313221211113313331333132313331322121111123121111331322123231311   >>    C3123223313331322121111331333133313231333132212111112312111133132212323131   <<    C31232233133313221211113313331333132313331322121111123121111331322123231313   >>      C31232233133313221211113313331333132313331322121111123121111331322123231312   >>