C31231211113313121211113313331333133313331213331323221211211321   >>    C3123121111331312121111331333133313331333121333132322121121132   <<    C31231211113313121211113313331333133313331213331323221211211323   >>      C31231211113313121211113313331333133313331213331323221211211322   >>