Q: 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: Not So Hot, Dog. Sentence 1: Jim became hungry, running around preparing, and ate a hot dog. Sentence 2: He wanted it to be special and had worked hard on each detail. Sentence 3: Jim had his big grand opening dinner for his store that evening. Sentence 4: He was all ready to go, got in his car, and his stomach lurched. Sentence 5: Because of the bad hot dog, Jim had to miss his grand dinner.
A:
13