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