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: Mountain climbing. Sentence 1: A few years back, my brother went mountain climbing in Utah. Sentence 2: He climbed a very tall structure over many hours. Sentence 3: He had to climb down while being very thirsty. Sentence 4: When he arrived on top, he realized he had no more water. Sentence 5: The first thing he did when he reached town was to drink water.

Answer: 34

Question: Title: Joining the Enemy. Sentence 1: Janice stole Billy's lunch. Sentence 2: Billy hesitated to fight back since Janice is twice his size. Sentence 3: He eventually got in trouble for his actions. Sentence 4: Billy took her advice and bullied others. Sentence 5: Janice also influenced him to bully others since it was fun.

Answer: 35

Question: Title: Lost and Found Dog. Sentence 1: I took my dog on a nice walk this afternoon. Sentence 2: I waited and waited and that night a nice lady returned my dog! Sentence 3: I searched for hours but I lost my dog. Sentence 4: I went home, made flyers and hung them all over town. Sentence 5: My dog got loose, saw a rabbit and took off running.

Answer:
25