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: Out of Burgers. Sentence 1: Sam was waiting in line at the drive through. Sentence 2: It took forever for him to get to even order his food. Sentence 3: Once he did they told him he couldn't get it. Sentence 4: Sam was so annoyed that he decided to just leave. Sentence 5: The fast food burger place had run out of hamburgers.
45