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: He had no choice but to do a lot of thinking. Sentence2: While at the cafe, he usually read a book. Sentence3: While thinking, Steve came up with an idea for a novel. Sentence4: Steve was sitting in the cafe. Sentence5: However, today he forgot his book.
Output:
42513