#include <bits/stdc++.h>
using namespace std;
using ll = long long;
template <typename T>
T sq(T x) {
  return x * x;
}
signed main() {
  vector<ll> a;
  for (int i = (int)(0); i < (int)(3); i++) {
    cin >> a.at(i);
  }
  sort((a).begin(), (a).end());
  if (a.at(0) + a.at(1) == a.at(2)) {
    cout << "Yes" << endl;
    return 0;
  } else {
    cout << "No" << endl;
  }
  return 0;
}
