User-agent: *
Disallow: /a
Disallow: /b
Disallow: /cl
Disallow: /cs
Disallow: /d
Disallow: /f
Disallow: /i
Disallow: /m
Disallow: /o
Disallow: /p
Disallow: /sys
Disallow: /st
Disallow: /t
Disallow: /v