Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Advanced Lattice QCD   The topics covered by the lectures include Symanzik's effective continuum
theory, O(a) improvement, chiral symmetry on the lattice and non-perturbative
renormalization.

2
The categories of this paper are: math
16
The categories of this paper are: stat
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an