double sumMod(const vector<double> &data) {
    double sum = 0;
    abs(sum);
    for_each(min_element(data.begin(), data.end(), [](double a, double b) { return fabs(b) > fabs(a); }) + 1,
             data.end(),
             [&sum](double a) { sum += fabs(a); });
    return sum;
}