C31231211113313121211113313331333133313311211331333133313232322331   >>    C3123121111331312121111331333133313331331121133133313331323232233   <<    C31231211113313121211113313331333133313311211331333133313232322333   >>      C31231211113313121211113313331333133313311211331333133313232322332   >>