C132233133112121111331333133313231333133313231211113313121111331121121   >>    C13223313311212111133133313331323133313331323121111331312111133112112   <<    C132233133112121111331333133313231333133313231211113313121111331121123   >>      C132233133112121111331333133313231333133313231211113313121111331121122   >>