# Hello aider!
Here is the simplest possible "hello world" example of using aider:
#### change hello to goodbye
To change the output from "hello" to "goodbye", we need to modify the `hello.py` file.
Here is the change:
```python
hello.py
<<<<<<< ORIGINAL
print("hello")
=======
print("goodbye")
>>>>>>> UPDATED
```
> Applied edit to hello.py
> Commit 672ae42 aider: Changed output from "hello" to "goodbye" in hello.py.