Counting positive numbers

[Young Monk]

Hi! Im a newbie to PERL.

I came across a size contest in spoj. The Problem was:

The number of inputs will be given as the first input. After that, a series of numbers both positive and negative are given. The program has to count only the values of the positive numbers and display the result. Eg,

Input:
5
2
-2
3
4
Output:
9

For this problem, i wrote a Perl Program. This was my Program:

$a=<>; ($x=<>)>0 ? $_ += $x : 0 while $a--; print

I've heard Perl excels in short programs. But i cant make it any shorter!

Can u guys help me make it shorter???

Thanks!

Update:

Btw, the shortest solution length was a mind boggling "6" characters long!!!! OMG!!!

Note: Actually the characters whose ASCII values are >=32 are only counted as characters