#include <bits/stdc++.h>
using namespace std;
using namespace std;
int main() {
  vector<long long> a(3);
  cin >> a[0] >> a[1] >> a[2];
  sort((a).begin(), (a).end());
  if (a[2] == a[1] + a[2])
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
