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: Birdwatching. Sentence 1: Camille felt something on her foot. Sentence 2: She stood in the bushes watching for the birds. Sentence 3: Camille went out to birdwatch. Sentence 4: She fearfully looked down. Sentence 5: She laughed when she saw it was only a kitten.

Ex Output:
31

Ex Input:
Title: Pizza Burn. Sentence 1: Allison was eating pizza. Sentence 2: The pizza was hot. Sentence 3: She had trouble eating for the rest of the day. Sentence 4: Allison burned the roof of her mouth. Sentence 5: She bit into her slice of pizza.

Ex Output:
53

Ex Input:
Title: Fall. Sentence 1: I was driving on my motorcycle. Sentence 2: And I fell off. Sentence 3: The road was wet. Sentence 4: At first it wouldn't restart. Sentence 5: The fall had knocked a battery cable loose.

Ex Output:
32