C132233133112121111331333133313231333133313231211113313223312333121   >>    C13223313311212111133133313331323133313331323121111331322331233312   <<    C132233133112121111331333133313231333133313231211113313223312333123   >>      C132233133112121111331333133313231333133313231211113313223312333122   >>