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 arrange the sentences in order to make a story that makes complete sense and is apt for the title. Indicate your answer using the number of the sentences in order, such as '34152'.

Title: Post Office. Sentence 1: Outgoing mail was to be left on a ledge by the door. Sentence 2: It was ignored and left on the ledge. Sentence 3: One day Marion put an important envelope on the ledge. Sentence 4: Marion's apartment had a postal pick-up protocol. Sentence 5: From then on Marion brought outgoing mail to the post office.
41325