#include <bits/stdc++.h>
using namespace std;
int main() {
  int N, K, X, Y = 3;
  vector<int> ame(Y);
  cin >> ame.at(0) >> ame.at(1) >> ame.at(2);
  sort(begin(ame), end(ame));
  if (ame.at(2) == ame.at(1) + ame.at(2))
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
