C31231211111133131211113313331333132233131211111211113313223313331111   >>    C3123121111113313121111331333133313223313121111121111331322331333111   <<    C31231211111133131211113313331333132233131211111211113313223313331113   >>      C31231211111133131211113313331333132233131211111211113313223313331112   >>