C312322331333132212111133133313331333133312121111331121132113231   >>    C31232233133313221211113313331333133313331212111133112113211323   <<    C312322331333132212111133133313331333133312121111331121132113233   >>      C312322331333132212111133133313331333133312121111331121132113232   >>