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

---
id: 5e6a54c358d3af90110a60a3
title: 'Introduction: Elements of Python'
challengeType: 11
videoId: aRY_xjL35v0
dashedName: introduction-elements-of-python
---

# --question--

## --text--

What will the following program print out:

```python
x = 43
x = x + 1
print(x)
```

## --answers--

x

---

x + 1

---

44

## --video-solution--

3