Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Pierre Auger Observatory: Contributions to the 33rd International
  Cosmic Ray Conference (ICRC 2013)   Contributions of the Pierre Auger Collaboration to the 33rd International
Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013

2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat