C13223313311212111133133313331333132313231323133313113313221212121   >>    C1322331331121211113313331333133313231323132313331311331322121212   <<    C13223313311212111133133313331333132313231323133313113313221212123   >>      C13223313311212111133133313331333132313231323133313113313221212122   >>