C312322331333132212111133133313331333133312121111331322333123311   >>    C31232233133313221211113313331333133313331212111133132233312331   <<    C312322331333132212111133133313331333133312121111331322333123313   >>      C312322331333132212111133133313331333133312121111331322333123312   >>