from heapq import heapify, heappop, heappush

N = int(input())
A = list(map(int, input().split()))

plus, minus = [], []
for a in A:
    if a > 0:
        plus.append(a)
    elif a < 0:
        minus.append(-a)

heapify(plus)
heapify(minus)

while plus and minus:
    min_plus = heappop(plus)
    max_minus = heappop(minus)

    x = min_plus - max_minus
    if x > 0:
        heappush(plus, x)
    elif x < 0:
        heappush(minus, -x)

if len(plus) + len(minus) <= 1:
    print('Yes')
else:
    print('No')