#include using namespace std; using ll = long long; using ld = long double; using vl = vector; template using vc = vector; template using vvc = vector>; #define eb emplace_back #define all(x) (x).begin(), (x).end() #define rep(i, n) for (ll i = 0; i < (n); i++) #define repr(i, n) for (ll i = (n)-1; i >= 0; i--) #define repe(i, l, r) for (ll i = (l); i < (r); i++) #define reper(i, l, r) for (ll i = (r)-1; i >= (l); i--) #define repa(i,n) for (auto& i: n) template inline bool chmax(T1 &a, const T2 &b) {if (a inline bool chmin(T1 &a, const T2 &b) {if (b void verr(const set &st) { repa(a, st) cerr << a << " "; cerr << endl; } template void verr(const map &mp) { repa(a, mp) cerr << "{" << a.first << ", " << a.second << "} "; cerr << endl; } template void verr(const vector>& a, const N& n) { rep(i, n) cerr << "{" << a[i].first << ", " << a[i].second << "} "; cerr << endl; } template void verr(const vector& a, const N& n) { rep(i, n) cerr << a[i] << " "; cerr << endl; } ll dbgt = 1; void err() { cerr << "passed " << dbgt++ << endl; } template void err(H&& h,T&&... t){ cerr<< h << (sizeof...(t)?" ":"\n") << flush; if(sizeof...(t)>0) err(forward(t)...); } #endif const ll INF = 4e18; const ld EPS = 1e-11; const ld PI = acos(-1.0L); const ll MOD = 1e9 + 7; // const ll MOD = 998244353; //--------------------------------------------------------------------------------// int main() { ll N; cin >> N; vl E(N); rep(i, N) cin >> E[i]; bool isok = false; auto dfs = [&](auto &&dfs, ll now, vl sums) -> void { if(now == N){ if (sums[0] == sums[1] and sums[1] == sums[2]) isok = true; return; } rep(i, 3){ sums[i] += E[now]; dfs(dfs, now + 1, sums); sums[i] -= E[now]; } }; dfs(dfs, 0, vl(3)); cout << (isok ? "Yes" : "No") << endl; }