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