C13223313311212111133133313331333132313231322331323131331121121   >>    C1322331331121211113313331333133313231323132233132313133112112   <<    C13223313311212111133133313331333132313231322331323131331121123   >>      C13223313311212111133133313331333132313231322331323131331121122   >>