#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
int main() {
  i64 a, b, c;
  cin >> a >> b >> c;
  i64 sum = a + b + c;
  if (sum / 2 == a || sum / 2 == b || sum / 2 == c) {
    cout << "Yes" << endl;
    return 0;
  }
  cout << "No" << endl;
  return 0;
}
