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