Detailed Instructions: 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.
Q: Title: Gala night. Sentence 1: She had the choice of two dresses and couldn't choose. Sentence 2: Kim was preparing to go to a gala that night. Sentence 3: She picked one at random and put it on. Sentence 4: When she arrived at the gala, the host was wearing the same dress. Sentence 5: They smiled at each other congratulating their good taste.
A:
12