#include <bits/stdc++.h>

using namespace std;

int main() {
    //输入+输出重定向
    freopen("../1350.in", "r", stdin);
    freopen("../1350.out", "w", stdout);

    int n;
    cin >> n;
    //声明一个动态大小的a数组
    int a[1000] = {0};
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    //最大值
    int m = INT32_MIN;
    //每个成员，左右看，到自己小的停止，查找个数
    for (int i = 0; i < n; ++i) {
        //得分
        int score = 0;
        int p = i;
        //自己是多少
        int now = a[i];
        //左
        while (p >= 0) {
            //向左
            if (a[p] >= now) {
                score += now;
                p--;
            } else {
                break;
            }
        }
        //右
        p = i + 1;
        while (p < n) {
            //向左
            if (a[p] > now) {
                score += now;
                p++;
            } else {
                break;
            }
        }
        if (score > m)m = score;
    }
    cout << m << endl;
    //关闭文件
    fclose(stdin);
    fclose(stdout);
    return 0;
}