C31231211113313121211113313331323133313331333133112331322122321   >>    C3123121111331312121111331333132313331333133313311233132212232   <<    C31231211113313121211113313331323133313331333133112331322122323   >>      C31231211113313121211113313331323133313331333133112331322122322   >>