C31231211111133131211113313331333132233133313331333133313223311111   >>    C3123121111113313121111331333133313223313331333133313331322331111   <<    C31231211111133131211113313331333132233133313331333133313223311113   >>      C31231211111133131211113313331333132233133313331333133313223311112   >>