Detailed Instructions: In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Q: Sentence1: John did not budget money well. Sentence2: As soon as John got his paycheck, he would spend money frivolously. Sentence3: By the time Monday came back around John had no money for lunch. Sentence4: John found this out when his debit card was declined. Sentence5: He decided to download a budgeting app on his smartphone.
A:
John