asdsadasd

from collections import defaultdict

def isHor(arr, i, j):
    chsum = []
    for k in range(i, j + 1):
        if len(chsum) == 0:
            chsum.append(arr[k])
        else:
            chsum.append(chsum[-1] + arr[k])

    lol = defaultdict(int)
    for e in chsum:
        lol[e] += 1

    k = 1
    for ii in lol.keys():
        if lol[ii] > 1:
            k = 0
    if lol[0]:
        k = 0

    return k

def kek():
    n = int(input())
    arr = list(map(int, input().split()))

    countHor = 0
    for i in range(n):
        for j in range(i, n):
            countHor += isHor(arr, i, j)
    print(countHor)

def main():
    kek()

main()