Task: songer_usc1

What follows is an opinion from a United States Court of Appeals.
Your task is to identify the most frequently cited title of the U.S. Code in the headnotes to this case. Answer "0" if no U.S. Code titles are cited. If one or more provisions are cited, code the number of the most frequently cited title.

PER CURIAM.
This is a suit to recover for a tax payment which the taxpayer says was not properly exacted from it. It has to do with the question whether a loss was to be treated as an ordinary loss or charged as a capital loss. The district court decided the case against the taxpayer and rendered a thoroughly considered opinion in so doing, D.C.E.D.Pa. 1953, 115 F.Supp. 594. We do not have anything to add to that opinion.
The judgment will be affirmed.

Question: What is the most frequently cited title of the U.S. Code in the headnotes to this case? Answer with a number.
Answer:

Answer: 0