import sys
from math import sqrt, pi, sin
inp = lambda : sys.stdin.readline()[:-1]
mii = lambda x = " ": [*map(int,input().split(x))]
mfi = lambda x = " ": [*map(float,input().split(x))]
ii = lambda : int(input())
n = ii()
l = mii()
k = sum(l) // 2
for i in range(n):
if l[i] == k:
print(i + 1)
break