User-agent: *
Disallow: /HTTP_Error_404,1,4/
Disallow: /1/4/HTTP_Error_404.html
Disallow: /?title=HTTP_Error_404

Disallow: /User_Login,1,2/
Disallow: /1/2/User_Login.html
Disallow: /?title=User%20Login
Disallow: /?title=User Login