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: On trend. Sentence 1: The risk paid off, and Ray started a new trend altogether. Sentence 2: Every season, he needs a new suit to keep up with style. Sentence 3: Last autumn, Ray tried a suit that was radical looking. Sentence 4: He knew it was a risk to wear it in his industry. Sentence 5: Ray worked in the fashion industry.
A:
15