from fractions import Fraction


n = input()
A = map(Fraction, raw_input().split())
dp = [set() for _ in xrange(n)]
dp[0].add(0)
dp[0].add(A[0])
for i in xrange(1, n):
    for j in dp[i-1]:
        dp[i].add(j)
        dp[i].add(j+A[i])
        dp[i].add(j-A[i])
        dp[i].add(A[i]-j)
        dp[i].add(j*A[i])
        dp[i].add(j/A[i])
        if j != 0:
            dp[i].add(A[i]/j)

if Fraction(n, 1) in dp[n-1]:
    print "YES"
else:
    print 'NO'