C1111233131211111211113313331333133313232313331333133313331311331322331333311   >>    C111123313121111121111331333133313331323231333133313331333131133132233133331   <<    C1111233131211111211113313331333133313232313331333133313331311331322331333313   >>      C1111233131211111211113313331333133313232313331333133313331311331322331333312   >>