DES MOINES, Iowa (AP) _ A San Francisco woman got the key to the city and a poster of a ballet star as she began a weekend on the town Friday as winner of a contest aimed at boosting Des Moines' image.

''It's an early weekend and a sunny weekend and I'm really looking forward to all the things I have to do,'' said Elise Rychlewski, one of 350 entrants who wrote in 25 words or less why they'd like to visit Des Moines.

Des Moines officials felt insulted last year by an ad in the San Francisco Examiner that urged people to visit sites in the Bay area. It featured a couple slouching in front of a TV set and declaring that for some the view in Des Moines was the same as theirs.

The officials ran their own ad in the paper, telling San Franciscans that the view in Iowa would include ballet star Rudolf Nureyev, who is scheduled to perform in the Iowa capital Saturday night.

The ad also announced the contest offering the trip to Des Moines.

Rychlewski, associate director of development for the art museum at the University of California-Berkeley, wrote a response in the style of a want ad that was judged the best of 350 entries.

''Girl seeks city for brief, but meaningful affair,'' she wrote. ''Must be interesting, friendly, traditional (but full of wonderful surprises). In short, a city like Des Moines.''

The week normally is one of the coldest of the year, but there was no snow in the forecast and the temperature Friday was about 32 degrees.

Miss Rychlewski said she did not consider herself a goodwill ambassador from San Francisco.

''I didn't know about the 'feud' and in the terms of my role between the two cities, I don't know that I have any kind of official capacity. I'm here to enjoy the resources of the city and the generous and friendly spirit of the people,'' she said.

''Basically, I'm going to see what the city of Des Moines has in store for me and enjoy it.''

After receiving a key to the city and a poster of Rudolf Nureyev, Miss Rychlewski and her companion, Barbara Walsh, were whisked away in a limousine to a reception and dinner with civic leaders and Nureyev.

After dinner, the itinerary called for touring a Victorian home and visiting a restored downtown gaslight district.

''Actually, I've never been to the Midwest before. I've never flown above it. So this is my introduction,'' she said.

Her friends in San Francisco reacted with disbelief ''because it came in frame of reference of one of the events - the dinner party with Rudolf Nureyev - and most people were very surprised by the combination of me being here doing that this weekend,'' said Miss Rychlewski.

On Saturday, they'll visit the governor's mansion and museum; tour Salisbury House, a 42-room mansion housing valuable art objects, paintings and a library of rare letters and first editions; watch the fourth annual Polar Bear Open golf tournament on a frozen lake; and attend Nureyev's performance.

Merchants also have donated $350 for shopping sprees in historic West Des Moines and a new skywalk-level mall downtown Des Moines.

Rychlewski also will tour the Des Moines Art Center, including its new Andy Warhol collection.