C111113331333132322331333133313331333132313121111131133132313331311221123233311   >>    C11111333133313232233133313331333133313231312111113113313231333131122112323331   <<    C111113331333132322331333133313331333132313121111131133132313331311221123233313   >>      C111113331333132322331333133313331333132313121111131133132313331311221123233312   >>