Detailed Instructions: In this task, you're given the title of a story consisting of five sentences, numbered 1 through 5. Your job is to determine which two sentences need to be swapped sentences in order to make a story that makes complete sense and is befittingly titled. Indicate your answer using the numbers of the two sentences in order, such as '34' or '25'. The first digit refers to the sentence which should come first in the story.
Q: Title: Benny's Blueberries. Sentence 1: He was fired that evening when his boss found out. Sentence 2: He hated customers, but loved working with the fruit. Sentence 3: Benny was asked a question by a customer one afternoon. Sentence 4: Benny told them to leave him alone with his fruit. Sentence 5: Benny worked at the produce section of a supermarket.
A:
15