#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int n, e[15];
bool bo = false;
void func(int now, int a, int b, int c) {
	if (now == n) {
		if (a == b && b == c) {
			bo = true;
		}
		return;
	}
	func(now + 1, a + e[now], b, c);
	func(now + 1, a, b + e[now], c);
	func(now + 1, a, b, c + e[now]);
}
int main() {
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> e[i];
	}
	func(0, 0, 0, 0);
	if (bo) {
		cout << "Yes" << endl;
	}
	else {
		cout << "No" << endl;
	}
}