C31231211111133131211113313331333132333133313121111331323213331313221   >>    C3123121111113313121111331333133313233313331312111133132321333131322   <<    C31231211111133131211113313331333132333133313121111331323213331313223   >>      C31231211111133131211113313331333132333133313121111331323213331313222   >>