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 "on the number of synchronizing colorings of digraphs"):
  Abstract: We deal with k-out-regular directed multigraphs with loops (called simply digraphs). The edges of such a digraph can be colored by elements of some fixed k-element set in such a way that outgoing edges of every vertex have different colors. Such a coloring corresponds naturally to an automaton. The road coloring theorem states that every primitive digraph has a synchronizing coloring.

Includes members:
  Member "complexity of road coloring with prescribed reset words":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "parameterized complexity of synchronization and road coloring")
  Member "reset thresholds of automata with two cycle lengths":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "an extremal series of eulerian synchronizing automata")
  Member "fast synchronization of random automata":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "optimal synchronization of partial deterministic finite automata")
  Member "synchronizing automata with large reset lengths":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "checking whether an automaton is monotonic is np complete")
  Member "primitive digraphs with large exponents and slowly synchronizing automata":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "optimal synchronization of partial deterministic finite automata")
  Member "on the probability of being synchronizable":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "optimal synchronization of partial deterministic finite automata")
  Member "practical graph isomorphism ii":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "hypergraph isomorphism for groups with restricted composition factors")
  Member "a quadratic algorithm for road coloring":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "complexity of road coloring with prescribed reset words")

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.FL(Formal Languages and Automata Theory)