C31231211113313121211113313113313331333132322331323113313223221   >>    C3123121111331312121111331311331333133313232233132311331322322   <<    C31231211113313121211113313113313331333132322331323113313223223   >>      C31231211113313121211113313113313331333132322331323113313223222   >>