C31231211113313121211113313331333133313311211331333133322232233131   >>    C3123121111331312121111331333133313331331121133133313332223223313   <<    C31231211113313121211113313331333133313311211331333133322232233133   >>      C31231211113313121211113313331333133313311211331333133322232233132   >>