C132233133112121111331333133313231333133313231211113313232322221   >>    C13223313311212111133133313331323133313331323121111331323232222   <<    C132233133112121111331333133313231333133313231211113313232322223   >>      C132233133112121111331333133313231333133313231211113313232322222   >>