n = int(input())
*a, = map(int,input().split())
K = sum(a)
if K%3:
    print("No")
    exit()
K //= 3

r = [0]
for ai in a:
    r += [x+ai for x in r]

for S in range(1<<n):
    T = S
    while T:
        if r[T] == r[S] - r[T] == K:
            print("Yes")
            exit()
        T = S&(T-1)

print("No")