C3123223313331322121111331333133313231333132212111112111133222123121   >>    C312322331333132212111133133313331323133313221211111211113322212312   <<    C3123223313331322121111331333133313231333132212111112111133222123123   >>      C3123223313331322121111331333133313231333132212111112111133222123122   >>