#include <bits/stdc++.h>
using namespace std;
const int mod = 1e9 + 7;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  int h = (a + b + c) / 2;
  cout << (h == a || h == b || h == c ? "Yes" : "No") << endl;
  return 0;
}
