Given the task definition and input, reply with output. 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: Hidden Cops. Sentence 1: I'm always looking around and being aware of my surroundings. Sentence 2: They hide in the sneakiest positions. Sentence 3: I once got pulled over and had no idea where the cop came from. Sentence 4: This made me a more careful driver. Sentence 5: I live in an area where cops are waiting to give you tickets.
51