C13223313311212111133133313331333132313331323322133313113312121   >>    C1322331331121211113313331333133313231333132332213331311331212   <<    C13223313311212111133133313331333132313331323322133313113312123   >>      C13223313311212111133133313331333132313331323322133313113312122   >>