The only email I found on this is site is timus_support@acm.timus.ru, which when I send an email to, I got mail return:

The original message was received at Sun, 24 Jan 2010 15:38:57 +0500
from mail-pw0-f57.google.com [209.85.160.57]

  ----- The following addresses had permanent fatal errors -----
judge_mailbox@busin.usu.ru
   (reason: 550 5.1.1 User unknown)
   (expanded from: <timus_support@acm.timus.ru>)

  ----- Transcript of session follows -----
550 5.1.1 judge_mailbox@busin.usu.ru... User unknown

Final-Recipient: RFC822; timus_support@acm.timus.ru
X-Actual-Recipient: RFC822; judge_mailbox@acm.busin.usu.ru
Action: failed
Status: 5.1.1
Diagnostic-Code: X-Unix; 550 5.1.1 User unknown
Last-Attempt-Date: Sun, 24 Jan 2010 15:39:05 +0500


---------- Forwarded Message ----------
From: Nat Pavasant <n...@gmail.com>
To: timus_support <timus_support@acm.timus.ru>
Date: Sun, 24 Jan 2010 17:38:44 +0700
Subject: ...

Any answer?

Try email judge_school   (at)  mail.ru