C13223313311212111133133313331333133313123133313113313232223221   >>    C1322331331121211113313331333133313331312313331311331323222322   <<    C13223313311212111133133313331333133313123133313113313232223223   >>      C13223313311212111133133313331333133313123133313113313232223222   >>