Jumble Berry Pie

3/4 cup sugar

1/4 cup flour -- all-purpose

3 cups blueberries -- fresh

1 1/2 cups raspberries -- fresh

1 1/2 cups blackberries -- fresh

Preheat oven to 425 degrees. Combine 3/4 cup sugar and the flour in bowl. Add berries and toss. Spoon berries into pie shell; dot with butter. Bake on cookie sheet 15 minutes. Reduce oven temperature to 375 degrees, and bake 50 to 60 minutes more, until center is bubbly.