C111113331333132322331333133313331311331322331333131133132313223123212311   >>    C11111333133313232233133313331333131133132233133313113313231322312321231   <<    C111113331333132322331333133313331311331322331333131133132313223123212313   >>      C111113331333132322331333133313331311331322331333131133132313223123212312   >>