C312312111111331312111133133313331333121111331333133313331311331333132233131321   >>    C31231211111133131211113313331333133312111133133313331333131133133313223313132   <<    C312312111111331312111133133313331333121111331333133313331311331333132233131323   >>      C312312111111331312111133133313331333121111331333133313331311331333132233131322   >>