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