C312322331333132212111133133313331333133312121111331333221333131131213121   >>    C31232233133313221211113313331333133313331212111133133322133313113121312   <<    C312322331333132212111133133313331333133312121111331333221333131131213123   >>      C312322331333132212111133133313331333133312121111331333221333131131213122   >>