You will be given a definition of a task first, then some input of the task.
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.

Title: Steve and His Cats. Sentence 1: Steve loves them very much and would be very sad if one of them died. Sentence 2: He had to bottle feed them because they were very young. Sentence 3: He has taken care of these cats for over two years. Sentence 4: Steve rescued four kittens from the alley in back of his apartment. Sentence 5: Steve plans on taking care of them for the rest of their lives.
Output:
41