C13223313311212111133133313331333132333133112111133132313312121   >>    C1322331331121211113313331333133313233313311211113313231331212   <<    C13223313311212111133133313331333132333133112111133132313312123   >>      C13223313311212111133133313331333132333133112111133132313312122   >>