Predict the conclusion

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Task

📝 **Task:** Predict the output of a reference-sharing program.

```python
a = [1, 2, 3]
b = a
b.append(4)
print(a)
```

📋 Type the list you expect into the output box.

💡 **Hint:** `b = a` does NOT copy the list — both variables point to the SAME list in memory. Changes through `b` are visible through `a`.

🎯 Think: what does `a` look like after `b.append(4)`?

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🐍write

List comprehensions

🐍fillFREE

Variables

🐍quizFREE

Data types

🔮 Predict the output

Read the code carefully

a = [1, 2, 3]
b = a
b.append(4)
print(a)

What will the program print? Write here:

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💬 Discussion