C13223313311212111133133313331333133313232233133313121111331333131122212311   >>    C1322331331121211113313331333133313331323223313331312111133133313112221231   <<    C13223313311212111133133313331333133313232233133313121111331333131122212313   >>      C13223313311212111133133313331333133313232233133313121111331333131122212312   >>