C13223313311212111133133313331333133313123133313113313232213121   >>    C1322331331121211113313331333133313331312313331311331323221312   <<    C13223313311212111133133313331333133313123133313113313232213123   >>      C13223313311212111133133313331333133313123133313113313232213122   >>