Input, execution, and output
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* Input

  * General remarks on input structure and parsing

  * Keys

  * Blocks

  * Including an external file

  * Units

  * Title, comment

  * Amsification of ADF in ADF2020

  * Input parsing changes in ADF2018 and later

* Execution

* Structure of the Output

  * Job Characteristics on standard Output

  * Log file, adf.rkf, TAPE13
