Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beauty and Physics: 13 Important Contributions of Chen Ning Yang   In 2012, Chen Ning Yang received a 90th birthday gift in the form of a black
cube inscribed with his 13 most important contributions, which cover four major
areas of physics: statistical mechanics, condensed matter physics, particle
physics and field theory. We briefly describe these 13 contributions and make
general comments about Yang's distinctive style as a trailblazing leader in
research.

13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio