import sys
from fractions import Fraction

def compute(numbers):
    if len(numbers) == 1:
        return {numbers[0]}
    results = set()
    for i in range(1, len(numbers)):
        left = numbers[:i]
        right = numbers[i:]
        left_results = compute(left)
        right_results = compute(right)
        for l in left_results:
            for r in right_results:
                # 加法
                results.add(l + r)
                # 减法
                results.add(l - r)
                results.add(r - l)
                # 乘法
                results.add(l * r)
                # 除法
                if r != 0:
                    results.add(l / r)
                if l != 0:
                    results.add(r / l)
    return results

def main():
    n = int(sys.stdin.readline())
    A = list(map(int, sys.stdin.readline().split()))
    # 将数转换为分数
    A = [Fraction(x) for x in A]
    for k in range(1, n):
        # 左边的数是前k个
        left = A[:k]
        # 右边的数是后n-k个
        right = A[k:]
        # 计算左边的所有可能结果
        left_results = compute(left)
        # 计算右边的所有可能结果
        right_results = compute(right)
        # 检查是否有交集
        if left_results & right_results:
            print("YES")
            return
    print("NO")

if __name__ == "__main__":
    main()