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