C31231211113313121211113313331333133313311211331311331121133133313331322233111   >>    C3123121111331312121111331333133313331331121133131133112113313331333132223311   <<    C31231211113313121211113313331333133313311211331311331121133133313331322233113   >>      C31231211113313121211113313331333133313311211331311331121133133313331322233112   >>