import itertools


n = int(input())
e = list(map(int, input().split()))


for ptn in itertools.product((0, 1, 2), repeat=n):
    res = [0] * 3
    for i, j in enumerate(ptn):
        res[j] += e[i]
    if res[0] == res[1] and res[1] == res[2]:
        print("Yes")
        exit()
print("No")