#include<bits/stdc++.h>
using namespace std;
using ll=long long;
constexpr ll mod=1e9+7;

ll n;
vector<ll> e;

bool isPossible(ll now = 0, ll pa = 0, ll pb = 0, ll pc = 0) {
  if (now == e.size()) {
    return pa == pb && pb == pc;
  }
  bool ans = false;
  // now -> a
  ans |= isPossible(now+1, pa+e[now], pb, pc);
  // now -> b
  ans |= isPossible(now+1, pa, pb+e[now], pc);
  // now -> c
  ans |= isPossible(now+1, pa, pb, pc+e[now]);

  return ans;
}

int main()
{
  cin.tie(0);
  ios_base::sync_with_stdio(false);
  cin>>n;
  e.resize(n);
  for (auto&& e: e) {
    cin>>e;
  }
  if (isPossible()) cout << "Yes\n";
  else cout << "No\n";
}