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: Skylar's school fight. Sentence 1: Skylar would always get picked on by a bully in his school. Sentence 2: One day came and Skylar couldn't take it anymore. Sentence 3: He stood up to his bully and got into a fight with him. Sentence 4: Skylar was never bullied again. Sentence 5: The principal came in a separated them.

Ex Output:
45

Ex Input:
Title: The Gift. Sentence 1: Tammy's mother brought her to the store to buy her a gift. Sentence 2: Tammy's aunt sent her money for her birthday. Sentence 3: Tammy began to look at all the toys and games. Sentence 4: She couldn't decide which to choose. Sentence 5: Tammy decided to save her money.

Ex Output:
21

Ex Input:
Title: The Test. Sentence 1: Billy was relieved and promised himself never to do that again. Sentence 2: He was stressed because he hadn't studied. Sentence 3: The time came and he did his best. Sentence 4: The next day he found out he got a B. Sentence 5: Billy had a math test at school.

Ex Output:
51