C132233133112121111331333133313231333133313231211113313123232311   >>    C13223313311212111133133313331323133313331323121111331312323231   <<    C132233133112121111331333133313231333133313231211113313123232313   >>      C132233133112121111331333133313231333133313231211113313123232312   >>