Q: 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: Hot Iron. Sentence 1: Dan quickly realized the smell was coming from the iron. Sentence 2: Dan was finally finished ironing his clothes. Sentence 3: Dan decided he would take a rest on the chair, then put away the iron. Sentence 4: After his quick nap, Dan smelled a burning smell. Sentence 5: Dan was ashamed that he had forgotten the iron on.
A:
23415