C312312111111331312111133133313331333121111121133133313113313223313232131   >>    C31231211111133131211113313331333133312111112113313331311331322331323213   <<    C312312111111331312111133133313331333121111121133133313113313223313232133   >>      C312312111111331312111133133313331333121111121133133313113313223313232132   >>