#include <bits/stdc++.h>
#define rep(i, l, r) for (int i = (l); i < (r); i++)
using namespace std;

typedef long long ll;

int main() {
    int N, M = 1;
    cin >> N;
    vector<int> E(N);
    rep(i, 0, N) {
        cin >> E[i];
        M *= 3;
    }
    string ans = "No";
    rep(i, 0, M) {
        vector<int> S(3, 0);
        int x = i;
        rep(j, 0, N) {
            S[x % 3] += E[j];
            x /= 3;
        }
        if (S[0] == S[1] && S[1] == S[2]) ans = "Yes";
    }
    cout << ans << endl;
}