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.
Judgment will be entered affirming the amended judgment below entered February 6, 1963 for the reasons given by Judge Wyzanski in his memorandum dated February 5, 1963, D.C., 223 F, Supp. 905.
. For the result of prior litigation between the parties, see Old Colony Envelope Company v. Boyajian, D.C., 176 F.Supp. 627 and Boyajian v. Old Colony Envelope Company, 1 Cir., 279 F.2d 572.

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