C31231211111133131211113313331333133313133112331333132323213331312231   >>    C3123121111113313121111331333133313331313311233133313232321333131223   <<    C31231211111133131211113313331333133313133112331333132323213331312233   >>      C31231211111133131211113313331333133313133112331333132323213331312232   >>