C13223313311212111133133313331323133313331323113313113313232233211   >>    C1322331331121211113313331333132313331333132311331311331323223321   <<    C13223313311212111133133313331323133313331323113313113313232233213   >>      C13223313311212111133133313331323133313331323113313113313232233212   >>