#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;

template <typename T>
inline bool chmax(T &a, const T &b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

template <typename T>
inline bool chmin(T &a, const T &b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

// #include <atcoder>
// using namespace atcoder;
// using mint = modint1000000007;
// using mint = modint998244353;

// const int MOD = 1000000007;
// const int MOD = 998244353;

int N;
vector<int> E(20);
int cnt1 = 0, cnt2 = 0, cnt3 = 0;
bool ok = 0;

void dfs(int x) {
    if (x == N) {
        if (cnt1 == cnt2 && cnt2 == cnt3) {
            ok = 1;
        }
        return;
    }
    cnt1 += E[x];
    dfs(x + 1);
    cnt1 -= E[x];
    cnt2 += E[x];
    dfs(x + 1);
    cnt2 -= E[x];
    cnt3 += E[x];
    dfs(x + 1);
    cnt3 -= E[x];
    return;
}

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    cin >> N;
    for (int i = 0; i < N; i++) {
        cin >> E[i];
    }
    dfs(0);
    cout << (ok ? "Yes" : "No") << endl;
    return 0;
}