#!/bin/python

import sys

def solve(A):
    #  Return the sum of S(S(A)) modulo 10^9+7.
    sa = maxTransform(A)
    ssa = maxTransform(sa)
    return sum(ssa)%(10**9+7)
    
def maxTransform(a):
    b=[]
    lenA = len(a)
    for k in range(0, len(a)-1+1):
        for i in range(0, len(a)-k-1+1):
            j=i+k
            b.append(max(a[i:j+1]))
        #for i -ends
    #for k -ends
    return b

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