C31231211113313121211113313331333133313311211331333133313331321121221333132231   >>    C3123121111331312121111331333133313331331121133133313331333132112122133313223   <<    C31231211113313121211113313331333133313311211331333133313331321121221333132233   >>      C31231211113313121211113313331333133313311211331333133313331321121221333132232   >>