question about the MaxSubArraySum problem

[crevillo]

hello. I've got a question about this problem. probably i haven't understood it correctly.
shouldn't the result of this test be 23 instead of 19?
https://github.com/azdanov/php-interview-exercises/blob/master/tests/MaxSubArraySum/Complete/MaxSubArrayCompleteTest.php#L28

9+8+6 = 23?

[Danzercroft]

hello, as i understand, in this task N parametr is size of window sliding throw array