C111113331333132322331333133313331311331322211211113313113313123232311   >>    C11111333133313232233133313331333131133132221121111331311331312323231   <<    C111113331333132322331333133313331311331322211211113313113313123232313   >>      C111113331333132322331333133313331311331322211211113313113313123232312   >>