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: The Appetizer. Sentence 1: His friend had ordered an appetizer. Sentence 2: Alex tried part of the appetizer. Sentence 3: Alex bought one of the appetizers to take home for himself. Sentence 4: He really liked the appetizer. Sentence 5: Alex was at a restaurant with a friend.
A:
51243