#include <iostream>

using namespace std;

int main() {

    const int size = 5;
    int arr[size]{ 23,-11,9,-18, -25 };

    int sum = 0;

    for (int i = 0; i < size; i++) {
        if (arr[i] < 0) {
            sum += arr[i];
        }
    }

    cout << "sum = " << sum << endl;
}