C31231211113313121211113313331323133313331333133112331323132313231322331   >>    C3123121111331312121111331333132313331333133313311233132313231323132233   <<    C31231211113313121211113313331323133313331333133112331323132313231322333   >>      C31231211113313121211113313331323133313331333133112331323132313231322332   >>