C31231211113313121211113313113313331333132322331311221123232221   >>    C3123121111331312121111331311331333133313232233131122112323222   <<    C31231211113313121211113313113313331333132322331311221123232223   >>      C31231211113313121211113313113313331333132322331311221123232222   >>