C13223313311212111133133313331333132333133112111133132112323223121   >>    C1322331331121211113313331333133313233313311211113313211232322312   <<    C13223313311212111133133313331333132333133112111133132112323223123   >>      C13223313311212111133133313331333132333133112111133132112323223122   >>