C13223313311212111133133313331333133313232233133313113313311233331311   >>    C1322331331121211113313331333133313331323223313331311331331123333131   <<    C13223313311212111133133313331333133313232233133313113313311233331313   >>      C13223313311212111133133313331333133313232233133313113313311233331312   >>