C31231211111133131211113313331333132233133313331333133313113313223332321   >>    C3123121111113313121111331333133313223313331333133313331311331322333232   <<    C31231211111133131211113313331333132233133313331333133313113313223332323   >>      C31231211111133131211113313331333132233133313331333133313113313223332322   >>