#include<bits/stdc++.h> using namespace std; using lli = long long; #define rep(i,n) for(int i=0;i<n;i++) template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } template<class T> ostream &operator<<(ostream &os, const vector<T> &x){ os << "{"; for(size_t i = 0; i < x.size(); i++){ if(i < x.size()-1) os << x[i] << ", "; else os << x[i]; } os << "}"; return os; } int main(void){ int n; cin >> n; vector<lli> e(n); rep(i, n) cin >> e[i]; int N = pow(3, n); rep(bit, N){ lli tmp = bit; lli a, b, c; a = b = c = 0; rep(i, n){ if(tmp%3 == 0){ a+=e[i]; }else if(tmp%3 == 1){ b+=e[i]; }else{ c+=e[i]; } tmp/=3; } if(a == b && b == c){ cout << "Yes" << endl; return 0; } } cout << "No" << endl; return 0; }