C13223313311212111133133313331333132333133313331333132321222121   >>    C1322331331121211113313331333133313233313331333133313232122212   <<    C13223313311212111133133313331333132333133313331333132321222123   >>      C13223313311212111133133313331333132333133313331333132321222122   >>