Sum of positive array elements

C++ Easy arrays

Task «Sum of positive array elements»

Given an array of integers. Write a program that finds the sum of all positive elements of the array. If there are no positive elements, output 0.

Input Format

In the first line, an integer N (1 ≤ N ≤ 1000) is entered — the number of elements in the array. In the second line, N integers are entered separated by spaces, each not exceeding 1000 in absolute value.

Output Format

Output a single integer — the sum of positive elements.

Examples

Example 1

INPUT

6
1 -2 3 -4 5 -6

OUTPUT

9

Example 2

INPUT

3
0 0 0

OUTPUT

0

main.cpp