#!/bin/python

import sys

def mt(arr):
    b = []
    for k in range(0, len(arr)):
        for i in range(0, len(arr)- k):
            j = i + k
            b.append(max(arr[i:j+1]))
    return b

def solve(A):
    #  Return the sum of S(S(A)) modulo 10^9+7.
    return sum(mt(mt(A))) % (10 ** 9 + 7)

if __name__ == "__main__":
    n = int(raw_input().strip())
    A = map(int, raw_input().strip().split(' '))
    result = solve(A)
    print result