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.

Example Input: Title: Gabby. Sentence 1: Gabby now spends her afternoons playing with her doll house. Sentence 2: She saved all of her allowance money to buy one. Sentence 3: She went to a toy store with her parents. Sentence 4: Gabby found the perfect pink and purple doll house. Sentence 5: Gabby always wanted a doll house.
Example Output: 15

Example Input: Title: Bird lover. Sentence 1: There was a huge variety of migrant birds for him to photograph. Sentence 2: Maurice loved to observe birds in the park near his house. Sentence 3: He'd sort all the pictures and make movies about them. Sentence 4: Then he'd invite everyone to watch his movies in the park. Sentence 5: Everyone liked the experience of watching real birds and pictures.
Example Output: 21

Example Input: Title: Chalky. Sentence 1: Hank read that alcohol could wear away the rosin material. Sentence 2: He'd just gotten a composite resin filling the day before. Sentence 3: Now there was a chalky taste and the feeling of something artificial. Sentence 4: Hank's mouth felt sort of weird. Sentence 5: He decided to binge on coffee to wash away the taste.
Example Output:
14