C312312111111331312111133133313121111133313113313223313232233111   >>    C31231211111133131211113313331312111113331311331322331323223311   <<    C312312111111331312111133133313121111133313113313223313232233113   >>      C312312111111331312111133133313121111133313113313223313232233112   >>