I'm researching the technical aspects of breaking the Lorenz cipher. Can you find a document on codesandciphers.org.uk that details 'Delta D Counts and Colossus Runs'? If so, what is its full title, who wrote it, and what is its primary focus as described on the website?
Navigate to 'https://www.codesandciphers.org.uk/'. Click on the 'Anoraks Corner' link. Click on the 'breaking Lorenz!!' link. Click on the 'Its vulnerabilities' link. Locate the document titled '#F71 Annex, Elementary Screed on Delta D Counts and Colossus Runs'. Identify the author of this document. Extract the primary focus or content description of the document as provided on the page. Synthesize the document's full title, author, and primary focus.
The agent successfully navigates to the 'vulnerabilities of the Lorenz machine' page. The agent identifies the document related to 'Delta D Counts and Colossus Runs'. The full title of the document is stated as '#F71 Annex, Elementary Screed on Delta D Counts and Colossus Runs'. The author of the document is stated as 'Walter Fried'. The primary focus/content description is stated as detailing 'elementary screeds on Delta D counts and Colossus runs, providing insights into the technical aspects of breaking Lorenz'.