Detailed Instructions: 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'.
Q: Title: Greg gets promoted. Sentence 1: Greg got the promotion. Sentence 2: Its up to him and another colleague. Sentence 3: The boss has made his choice. Sentence 4: Greg is up for a promotion at work. Sentence 5: Greg puts up his best effort at work.
A:
42531