User-agent: Yandex 
Disallow: /ab
Disallow: /dates
Disallow: /parol
Disallow: /screen
Disallow: /imghist
Host: history-gatchina.ru

User-Agent: *
Disallow: /ab
Disallow: /dates
Disallow: /parol
Disallow: /screen
Disallow: /imghist