#!/usr/bin/python
from __future__ import print_function,division
from fractions import Fraction
import sys,itertools

def dfs(a):
	if len(a)<2: yield a[0]
	for i in range(len(a)-1):
		for l in dfs(a[:i+1]):
			for r in dfs(a[i+1:]):
				yield l+r
				yield l-r
				yield l*r
				if r!=0: yield Fraction(l,r)

n=int(sys.stdin.readline())
a=list(map(int,sys.stdin.readline().split()))
for q in range(3,n+1):
	for b in itertools.permutations(a,q):
		for e in dfs(b):
			if e==0:
				print('YES')
				exit(0)
print('NO')