C312322331333132212111133133313331333133312121111331312131133112121   >>    C31232233133313221211113313331333133313331212111133131213113311212   <<    C312322331333132212111133133313331333133312121111331312131133112123   >>      C312322331333132212111133133313331333133312121111331312131133112122   >>