#include <iostream>
#include <vector>

using namespace std;

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

    int z = 0, s = 0;
    for (int i = 0; i < n; i++) {
        z += i * a[i];
        s += a[i];
    }

    int max_z = z;
    for (int i = 1; i < n; i++) {
        z += n * a[i - 1] - s;
        if (max_z < z) {
            max_z = z;
        }
    }

    return max_z;
}

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

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

    cout << max_zbir(a) << endl;
    
    return 0;
}