C13223313311212111133133313331333132313231323133313113313223331231   >>    C1322331331121211113313331333133313231323132313331311331322333123   <<    C13223313311212111133133313331333132313231323133313113313223331233   >>      C13223313311212111133133313331333132313231323133313113313223331232   >>