import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
sys.setrecursionlimit(10**7)
yes = lambda :print("yes");Yes = lambda :print("Yes")
no = lambda :print("no");No = lambda :print("No")
#######################################################################
n = ni()
e = na()
from itertools import product

for i in product(range(3),repeat=n):
    a =[ 0,0,0]
    for j in range(n):
        a[i[j]]+=e[j]
    if a[0]==a[1]==a[2]:
        Yes()
        exit()
No()