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: Terry's love. Sentence 1: Terry stayed by his side helping him in anyway he could. Sentence 2: Terry's grandparent was very sick in the hospital. Sentence 3: Terry prayed day and night that his grandparent would get better. Sentence 4: A few days later Terry knew it was time for his grandpa to pass on. Sentence 5: Holding his hand he watched his Grandpa's eyes close for the last time.

Ex Output:
12

Ex Input:
Title: Stuck Saul. Sentence 1: The doors closed and the elevator started to move. Sentence 2: Saul got into the elevator at his office building. Sentence 3: Saul became anxious when the elevator stopped between floors. Sentence 4: He had to use the emergency phone to call for help. Sentence 5: The building manager got the elevator running again.

Ex Output:
12

Ex Input:
Title: Alan's Paper. Sentence 1: Alan had to write a paper for class. Sentence 2: Alan turned in his paper to be graded. Sentence 3: Alan checked out a few books. Sentence 4: He read through the books and wrote his paper. Sentence 5: He went to the library to do research.

Ex Output:
25