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.

Ex Input:
Title: Another Source of Payment. Sentence 1: Jeff grabbed a couple of items from the supermarket. Sentence 2: He went to the cashier. Sentence 3: He realized that he forgot his wallet. Sentence 4: She scanned the items and told him how much he owed. Sentence 5: He took off his watch and offered to trade it for the groceries.

Ex Output:
43


Ex Input:
Title: Fancy Restaurant. Sentence 1: My family went to a restaurant on the Ohio river. Sentence 2: I had salmon and asparagus. Sentence 3: People tore off pieces of bread. Sentence 4: It was a five course meal. Sentence 5: It was the best food I ever had.

Ex Output:
42


Ex Input:
Title: Ice Cream. Sentence 1: Ava begged her dad to stop for ice cream. Sentence 2: She had barely finished her Happy Meal, but he conceded anyways. Sentence 3: Most of it melted all over her face and dress! Sentence 4: As he expected, Ava could hardly eat more than two licks of ice cream. Sentence 5: But her dad sighed and smiled to see Ava's messy happiness.

Ex Output:

43


