C31231211113313121211113313331333133313311211331333133313331311331333132221311   >>    C3123121111331312121111331333133313331331121133133313331333131133133313222131   <<    C31231211113313121211113313331333133313311211331333133313331311331333132221313   >>      C31231211113313121211113313331333133313311211331333133313331311331333132221312   >>