human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "the runs theorem"):
  Abstract: We give a new characterization of maximal repetitions (or runs) in strings based on Lyndon words. The characterization leads to a proof of what was known as the “runs” conjecture [R. M. Kolpakov an...

Includes members:
  Member "computing runs on a general alphabet":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "tight lower bounds for the longest common extension problem")
  Member "internal pattern matching queries in a text and applications":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "string synchronizing sets sublinear time bwt construction and optimal lce data structure")
  Member "lyndon words and short superstrings":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "lyndon words versus inverse lyndon words queries on suffixes and bordered words")
  Member "on the maximal sum of exponents of runs in a string":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "on the number of gapped repeats with arbitrary gap")
  Member "on bijective variants of the burrows wheeler transform":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "lyndon words versus inverse lyndon words queries on suffixes and bordered words")
  Member "new lower bounds for the maximum number of runs in a string":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "beyond the runs theorem")
  Member "circle formation of weak robots and lyndon words":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "infinite grid exploration by disoriented robots")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DM(Discrete Mathematics)