C31231211111133131211113313331333133112111133133313331323231323221   >>    C3123121111113313121111331333133313311211113313331333132323132322   <<    C31231211111133131211113313331333133112111133133313331323231323223   >>      C31231211111133131211113313331333133112111133133313331323231323222   >>