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: Halloween. Sentence 1: Harry wanted to be a superhero for halloween. Sentence 2: Harry thought it was great and decided to be a cowboy. Sentence 3: He was sad to see that the costumes were all sold out. Sentence 4: His mom showed him a ninja costume. Sentence 5: His mom took him to the store to buy a costume.
Output:
25