#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  int s = (a + b + c) / 2;
  if ((a + b + c) % 2 == 1) {
    cout << "No" << endl;
  } else if (s = a) {
    cout << "Yes" << endl;
  } else if (s == b) {
    cout << "Yes" << endl;
  } else if (s = c) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
}
