C312322331333132212111133133313331333133312121111121111331211111133222112311   >>    C31232233133313221211113313331333133313331212111112111133121111113322211231   <<    C312322331333132212111133133313331333133312121111121111331211111133222112313   >>      C312322331333132212111133133313331333133312121111121111331211111133222112312   >>