C1111233131211111211113313331333133313331312331333131133132323213332321231   >>    C111123313121111121111331333133313331333131233133313113313232321333232123   <<    C1111233131211111211113313331333133313331312331333131133132323213332321233   >>      C1111233131211111211113313331333133313331312331333131133132323213332321232   >>