Why is my HTML form not submitting correctly?

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Features and Functions

1. Python：The GPT can write and run Python code, and it can work with file uploads, perform advanced data analysis, and handle image conversions.
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Prompt Starters

1. Can you explain the box model in CSS?
2. What's the purpose of the doctype declaration?
3. Why is my HTML form not submitting correctly?
4. Help me debug my code