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: Picnic in the park. Sentence 1: But all of the sudden it started to rain. Sentence 2: So they went to the local one around the corner. Sentence 3: Fred wanted to take his girlfriend to the park. Sentence 4: Their picnic was ruined. Sentence 5: Fred was crushed.

Ex Output:
13


Ex Input:
Title: Missed a Lucky Day. Sentence 1: Drew was weak from his medications. Sentence 2: He didn't go to school today. Sentence 3: He said that school was beyond fun today. Sentence 4: A friend called him at night to see if he was okay. Sentence 5: Drew found out that there was a large assembly and party there.

Ex Output:
34


Ex Input:
Title: Clubhouse in the attic. Sentence 1: I was looking at my attic one day. Sentence 2: It looked like it would make a good clubhouse. Sentence 3: I put a couch and a tv up there. Sentence 4: Until we realized that rats live up there. Sentence 5: My friends and I had fun in our new clubhouse.

Ex Output:

54


