C13223313311212111133133313331333132333132312111133132321123121   >>    C1322331331121211113313331333133313233313231211113313232112312   <<    C13223313311212111133133313331333132333132312111133132321123123   >>      C13223313311212111133133313331333132333132312111133132321123122   >>