C312312111112111113121333133313331333133313331333211232313233313331322211232231   >>    C31231211111211111312133313331333133313331333133321123231323331333132221123223   <<    C312312111112111113121333133313331333133313331333211232313233313331322211232233   >>      C312312111112111113121333133313331333133313331333211232313233313331322211232232   >>