There is a small bug on this server - when I want to visit address like
http://acm.timus.ru/status.aspx?space=1&pos=444444
then I get a correct Online-Status page with ID 444444 in the begining, but when I type something like
http://acm.timus.ru/status.aspx?space=1&pos=636497
(current O-S) I get a Online-Status page with ID 650479.