What follows is an opinion from a United States Court of Appeals. Your task is to identify what party initiated the appeal. For cases with cross appeals or multiple docket numbers, if the opinion does not explicitly indicate which appeal was filed first, assumes that the first litigant listed as the "appellant" or "petitioner" was the first to file the appeal. In federal habeas corpus petitions, consider the prisoner to be the plaintiff.

Opinion:
UNITED STATES of America, Plaintiff-Appellee v. Andrew GUST, Defendant-Appellant.
No. 15462.
United States Court of Appeals Sixth Circuit.
Feb. 25, 1964.
Hayden C. Covington, New York City, on the brief, for appellant.
Lawrence Gubow, U. S. Atty., Paul J. Komibes, Asst. U. S. Atty., Detroit, Mich., for appellee.
Before WEICK, Chief Judge, CECIL, Circuit Judge, and PECK, District Judge.
ORDER.
The judgment of the District Court is affirmed on the authority of United States v. Willard, 312 F.2d 605 (6th Cir. 1963), cert. denied 372 U.S. 960, 83 S.Ct. 1014, 10 L.Ed.2d 13.
No costs awarded. Rule 23(4),

Question: What party initiated the appeal?

Choices:
Original plaintiff
Original defendant
Federal agency representing plaintiff
Federal agency representing defendant
Intervenor
Not applicable
Not ascertained

Answer: 1