User-agent: *
Disallow: /hidden/beginner/
Disallow: /hidden/basis/
Disallow: /hidden/type-a/
Disallow: /hidden/hello/
Disallow: /hidden/another/
Disallow: /hidden/lecture/mini/
Disallow: /hidden/lecture/petit/
Disallow: /hidden/lecture/practice/
Disallow: /hidden/lecture/exercise/