What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Opinion:
UNITED STATES v. FIRST NATIONAL BANCORPORATION, INC., et al.
No. 71-703.
Argued October 16-17, 1972
Decided February 28, 1973
Deputy Solicitor General Friedman argued the cause for the United States. With him on the briefs were Solicitor General Griswold, Assistant Attorney General Kauper, Acting Assistant Attorney General Comegys, Donald I. Baker, Howard E. Shapiro, William Bradford Reynolds, and Lee A. Rau.
Eugene J. Metzger argued the cause for appellees. With him on the briefs were Edward B. Close, Jr., Carl W. Schwarz, and Mark W. Haase.
Briefs of amici curiae were filed by Robert Bloom, C. Westbrook Murphy, and Charles H. McEnerney, Jr., for the Comptroller of the Currency; by William E. Murane and J. William Via, Jr., for the Federal Deposit Insurance Corporation; by Andrew P. Miller, Attorney General, and Henry M. Massie, Jr., Assistant Attorney General, for the Commonwealth of Virginia; and by Michael lovenko for the New York State Banking Department.
Per Curiam.
The judgment is affirmed by an equally divided Court.
Mr. Justice Powell took no part in the consideration or decision of this case.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?

Choices:
stay, petition, or motion granted
affirmed (includes modified)
reversed
reversed and remanded
vacated and remanded
affirmed and reversed (or vacated) in part
affirmed and reversed (or vacated) in part and remanded
vacated
petition denied or appeal dismissed
certification to or from a lower court
no disposition

Answer: 1