using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Solution {

    static int solve(int[] A) {
            var _temp = sample2(sample2(A));
            var _ans = sum(_temp);
            var ans = _ans % (1000000007);
            return Convert.ToInt32(ans);
    }

    static void Main(String[] args) {
        int n = Convert.ToInt32(Console.ReadLine());
        string[] a_temp = Console.ReadLine().Split(' ');
        int[] a = Array.ConvertAll(a_temp,Int32.Parse);
        int result = solve(a);
        Console.WriteLine(result);
    }
    
    public static int[] sample2(int[] ar)
        {
            var b = new List<int>();
            for (int k = 0; k <= (ar.Length - 1); k++)
            {
                for (int i = 0; i <= (ar.Length - k - 1); i++)
                {
                    int j = i + k;
                    int max = max_subarray(ar, i, j);
                    b.Add(max);
                }
            }           
            return b.ToArray();
        }

        public static ulong sum(int[] a)
        {
            ulong d = 0;
            foreach (var item in a)
            {
                d += Convert.ToUInt64(item);
            }
            return d;
        }



        public static int max_subarray(int[] ar, int i, int j)
        {
            int max = ar[i];
            for (int m = i; m <= (j); m++)
            {
                if (max < ar[m])
                {
                    max = ar[m];
                }
            }

            return max;
        }
}