#include <bits/stdc++.h>
using namespace std;
int main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  int a, b, c;
  cin >> a >> b >> c;
  bool ans = (a + b + c) / 2 == max({a, b, c});
  cout << (ans ? "Yes" : "No") << endl;
}
