C132233133112121111331333133313231333133313231211113313113311212111   >>    C13223313311212111133133313331323133313331323121111331311331121211   <<    C132233133112121111331333133313231333133313231211113313113311212113   >>      C132233133112121111331333133313231333133313231211113313113311212112   >>