#include <bits/stdc++.h> using namespace std; struct iofast_t { iofast_t() { ios::sync_with_stdio(false); cin.tie(nullptr); } } iofast; struct uns_t {} uns; template <typename Element, typename Head, typename ...Args> auto vec(Element init, Head arg, Args ...args) { if constexpr (sizeof...(Args) == 0) return std::vector(arg, init); else return std::vector(arg, vec(init, args...)); } template <typename Element, typename Head, typename ...Args> auto vec(uns_t, Head arg, Args ...args) { return vec(Element(), arg, args...); } template <typename T, typename Compare = less<T>> T &chmin(T &l, T r, Compare &&f = less<T>()) { return l = min(l, r, f); } template <typename T, typename Compare = less<T>> T &chmax(T &l, T r, Compare &&f = less<T>()) { return l = max(l, r, f); } int main() { int n; cin >> n; auto p = vec<int>(uns, n); for (auto &e : p) cin >> e; int lim = 1; for (int i = 0; i < n; ++i) { lim *= 3; } for (int i = 0; i < lim; ++i) { int b = i; int v[3] = {}; for (int j = 0; j < n; ++j) { v[b % 3] += p[j]; b /= 3; } if (v[0] == v[1] && v[1] == v[2]) { cout << "Yes" << endl; return 0; } } cout << "No" << endl; }