freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.md

---
id: 5e6a54c358d3af90110a60a3
challengeType: 11
videoId: aRY_xjL35v0
---

## Description
<section id='description'>

</section>

## Tests
<section id='tests'>

```yml
question:
  text: |
    What will the following program print out:
    ```python
    x = 43
    x = x + 1
    print(x)
    ```
  answers:
    - |
        x
    - |
        x + 1
    - |
        44
  solution: 3
```

</section>