The previous page is sending you to https://r.mail.yandex.net/url/Fy8D0rTTUcsrCzBThbriPg,1343012049/www.edu.ru%2Findex%2Ephp%3Fop%3Dword&page%5Fid%3D50&wid%3D11.

 If you do not want to visit that page, you can return to the previous page.