C312322331333132212111133133313331333133312121111331333133223311   >>    C31232233133313221211113313331333133313331212111133133313322331   <<    C312322331333132212111133133313331333133312121111331333133223313   >>      C312322331333132212111133133313331333133312121111331333133223312   >>