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: Old Hamburgers.. Sentence 1: Then, I looked at the wrapper. Sentence 2: I was excited to begin eating it. Sentence 3: My dad finished cooking out hamburgers. Sentence 4: I told him the hamburgers were old. Sentence 5: We went out to Mcdonald's instead.
13

Title: Taking the leap. Sentence 1: When he had finished, he wanted to do it again straight away. Sentence 2: When he went travelling, it was the first thing he looked to do. Sentence 3: When he got to the edge, he panicked. Sentence 4: It took him 20 minutes before he actually jumped. Sentence 5: Doug always wanted to go bungee jumping.
15

Title: Winner. Sentence 1: The game was tied and almost over. Sentence 2: Luke was playing hockey at school. Sentence 3: Then Luke made the winning shot! Sentence 4: Everybody cheered! Sentence 5: Luke was so proud of himself!
21