Execution
Executing a program in WIDE is done by clicking the 'Run' button () at the toolbar or by pressing F5.
Before executing a program, WIDE will take two steps:

1. Compile the program - any errors will be reported on the Messages pane
2. Prompt the user to enter input to the program:

Interesting facts regarding the Input Dialog:

- The input can mix tree notation, list notation and file-inclusion, all seen in the above screen-capture.
- Uncheck the 'Always Display' checkbox if you do not want the Input Dialog to display each time you run or debug the program; you can always bring the Input-Dialog up by clicking on its button () at the toolbar (or pressing Ctrl+I)
- Use the Quick Hot Keys for quick symbols insertion.
- You can also press:
  - Ctrl+, to insert: '('
  - Ctrl+. to insert: 'nil'
  - Ctrl+/ to insert: ')'