Instructions: 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.
Input: Title: hidden gem. Sentence 1: John was walking on the way to work. Sentence 2: John tried out a rice dish. Sentence 3: John saw a food cart. Sentence 4: John was surprised of the rich flavor. Sentence 5: John would go to the food cart daily for his lunch.
Output:
23