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.
Input: Title: Old Records. Sentence 1: Tracy and her father spent the night listening to the records. Sentence 2: He had a ton of records. Sentence 3: Tracy didn't know the artists on any of the records. Sentence 4: Her father wanted to introduce the music to his daughter. Sentence 5: Tracy was at her father's house.
Output:
15