C31231211113313112133313331311331333133313331333133313331333133313233113221   >>    C3123121111331311213331333131133133313331333133313331333133313331323311322   <<    C31231211113313112133313331311331333133313331333133313331333133313233113223   >>      C31231211113313112133313331311331333133313331333133313331333133313233113222   >>