Admins, please check correctness of tests and checker of problem 1110.

The same sources:
submit 1314552 - AC (25 Sep 2006)
submit 2568546 - WA1 (19 Apr 2009)

Yes, there was the same error as in problem 1111
(http://acm.timus.ru/forum/thread.aspx?id=22496&upd=633766864217515000). All submits since April,14,2009 were rejudged and many of WA#1 verdicts became AC.