Instructions: In this task, you're given a short story of five sentences written in natural language. However, the order of the given story is not correct. Your job is to return the correct order for the given five sentences to create a coherent short story with the new order that has the correct flow. Generate your answer using the number of sentences in the correct order, such as '23415'.
Input: Sentence1: My favorite class is music. Sentence2: I had a great time at school. Sentence3: I got to wear my new outfit that Mom bought. Sentence4: Today was the first day of school. Sentence5: I met a lot of new friends.
Output:
45213