C132233133112121111331333133313231333133313231211113313231333132231121   >>    C13223313311212111133133313331323133313331323121111331323133313223112   <<    C132233133112121111331333133313231333133313231211113313231333132231123   >>      C132233133112121111331333133313231333133313231211113313231333132231122   >>