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: Terrible Test. Sentence 1: Tim needed to take a large test to graduate from high school. Sentence 2: Tim learned that studying is important. Sentence 3: However, Tim never studied for tests, including this one! Sentence 4: Tim guessed all the answers, failed the test, and did not graduate. Sentence 5: He was confident he would pass.

Ex Output:
52

Ex Input:
Title: Dad. Sentence 1: His dad was picking up dog poop in the back yard. Sentence 2: He was usually in his chair. Sentence 3: He wasn't in his chair. Sentence 4: He looked in the back yard. Sentence 5: The boy looked for his dad.

Ex Output:
51

Ex Input:
Title: Tim is bullied. Sentence 1: A few kids in the back start to tease him and call him names. Sentence 2: At school Tim gets the best score on the test in class. Sentence 3: Tim was a good kid who always got great grades. Sentence 4: After class lets out they meet Tim in the hallway. Sentence 5: They bully Tim and stuff him into a locker.

Ex Output:
13