unexpected output

Revision en2, by brainstorm, 2015-12-09 05:53:40

http://codeforces.me/contest/449/submission/14705739

on my system the output for the given test case is coming to be "2" , while codeforces compiler is giving "1" .
why so?

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en2 English brainstorm 2015-12-09 05:53:40 23
en1 English brainstorm 2015-12-09 05:51:54 186 Initial revision (published)