#include <iostream>
#include <vector>

using namespace std;

int ruter(const vector<int> &a)
{
    const int n = a.size();

    int pre = 0, posle = 0, d = 0;
    for (int i = 0; i < n; i++) {
        posle += a[i];
        d += i * a[i];
    }

    int min_d = d;
    for (int i = 0; i < n; i++) {
        pre += a[i];
        posle -= a[i];
        d += pre - posle;
        if (min_d > d) {
            min_d = d;
        }
    }
    
    return min_d;
}

int main(void)
{
    int n;
    cin >> n;

    vector<int> a(n);

    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }

    cout << ruter(a) << endl;

    return 0;
}