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: Violin Player. Sentence 1: My friend Ben was a soldier in WW2. Sentence 2: One day he was in Italy. Sentence 3: Ben paid him money to play classical music for an hour. Sentence 4: He met a violinist on the street. Sentence 5: Ben wrote a poem about the experience.

Answer: 43

Question: Title: The Sale. Sentence 1: Matthew wanted to earn some money. Sentence 2: A man walking by bought a yo-yo for 25 cents. Sentence 3: He sat outside with the sign and some toys he no longer played with. Sentence 4: He made a sign that said "Yard Sale". Sentence 5: Matthew felt like a successful businessperson.

Answer: 24

Question: Title: The secret field. Sentence 1: We were so annoyed that we stopped playing. Sentence 2: Too many people kept cutting through the field. Sentence 3: I was playing baseball in the park with friends. Sentence 4: I randomly started walking through the trees at the edge of the park. Sentence 5: I stumbled upon a huge secret field where we could play in peace.

Answer:
13