#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  bool f = 0;
  if(a == b + c || b = a + c || c = a + b) f = 1;
  if(f) cout << "Yes" << endl;
  else cout << "No" << endl;
  return 0;
}
