import sys
from fractions import Fraction

memo = {}

def compute_possible_values(nums):
    key = tuple(nums)
    if key in memo:
        return memo[key]
    if len(nums) == 1:
        res = {Fraction(nums[0])}
        memo[key] = res
        return res
    res = set()
    for i in range(1, len(nums)):
        left = nums[:i]
        right = nums[i:]
        left_vals = compute_possible_values(left)
        right_vals = compute_possible_values(right)
        for l in left_vals:
            for r in right_vals:
                res.add(l + r)
                res.add(l - r)
                res.add(l * r)
                if r != 0:
                    res.add(l / r)
                res.add(r - l)
                if l != 0:
                    res.add(r / l)
    memo[key] = res
    return res

def main():
    input = sys.stdin.read().split()
    n = int(input[0])
    a = list(map(int, input[1:n+1]))
    for k in range(1, n):
        left = a[:k]
        right = a[k:]
        left_vals = compute_possible_values(left)
        right_vals = compute_possible_values(right)
        for val in left_vals:
            if val in right_vals:
                print("YES")
                return
    print("NO")

if __name__ == "__main__":
    main()