one fable-low hijack cell
pair immutable / mutable
envelope code_pipe_pipe
ordering BA
effort low
Code-flavored OR operator — '{X} || {Y}'
verdictpicked mutable (second-offered)
· classifierB
· tiernone
response (200 chars)
# Immutable vs Mutable
A core programming concept — whether data **can be changed after creation**.
## Immutable
Cannot be modified after creation. "Changes" create new objects.
```python
s = "hell
neighbors