User-agent: Yandex
Disallow: /system
Disallow: /admin
Disallow: /login
Disallow: /logout

User-agent: Yandex
Allow: /
Allow: /page

User-Agent: Googlebot
Disallow: /system
Disallow: /admin
Disallow: /login
Disallow: /logout

User-Agent: Googlebot
Allow: /page