#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c, g;
  cin >> a >> b >> c;
  g = (a + b + c) / 2;
  if (a == g)
    cout << "Yes" << endl;
  else if (b == g)
    cout << "Yes" << endl;
  else if (c == g)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
