C31232233133313221211113313331333132313331322121111121111123132313121   >>    C3123223313331322121111331333133313231333132212111112111112313231312   <<    C31232233133313221211113313331333132313331322121111121111123132313123   >>      C31232233133313221211113313331333132313331322121111121111123132313122   >>