#include <bits/stdc++.h> using namespace std; int main(){ int n; cin >> n; vector<int> E(n); for (auto &e: E) cin >> e; for (int trits = 0; trits < int(round(pow(3, n))); trits++){ vector<int> S(3); auto t = trits; for (int i = 0; i < n; i++){ S[t % 3] += E[i]; t /= 3; } if (S[0] == S[1] and S[1] == S[2]){ puts("Yes"); return 0; } } puts("No"); }