Basic Interactions

Start RETRO in interactive mode:

```
retro -i
```

You should see something similar to this:

RETRO 12 (2019.6) 8388608 MAX, TIB @ 1025, Heap @ 9374

At this point you are at the listener, which reads and processes your input. You are now set to begin exploring RETRO.

To exit, run bye:

```
bye
```