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.
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Question: Title: Dog Security. Sentence 1: Steve's dog barked at everything. Sentence 2: One day, a burglar approached the door, and the dog barked fiercely. Sentence 3: The little terrier jumped and yapped loudly when anyone arrived. Sentence 4: The burglar was scared, and decided to not break into the house. Sentence 5: The dog's barking had finally paid off.

Answer: 32

Question: Title: Mean Dog. Sentence 1: Chris was bit by a dog when he was a kid. Sentence 2: Chris's friend invited him over and he accepted. Sentence 3: Chris's friend has a dog. Sentence 4: The dog was really nice and Chris is no longer scared. Sentence 5: He was really nervous around the dog.

Answer: 45

Question: Title: Distracting melody. Sentence 1: Henry came home from school. Sentence 2: The music that he was listening to bothered him. Sentence 3: Since there was a major exam tomorrow, he started to study. Sentence 4: However, he couldn't resist listening to music while studying. Sentence 5: At the end of the day, Henry felt unprepared for the exam.

Answer:
23