Given the task definition and input, reply with output. 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.

Title: Skipping Class. Sentence 1: At school, Jen's friend asked her to skip fourth period with her. Sentence 2: Jen finally agreed to go with her. Sentence 3: Her friend kept insisting that they would not get caught. Sentence 4: Jen did not want to because she did not want to get in trouble. Sentence 5: When fourth period came, they snuck out of school to go to the park.
24