#include <bits/stdc++.h>
using namespace std;
int main() {
  int arr[3];
  cin >> arr[0] >> arr[1] >> arr[2];
  sort(arr, arr + 3);
  if ((arr[0] == arr[1] + arr[2]) or (arr[0] == arr[1] + arr[2]))
    cout << "Yes" << endl;
  else
    cout << "Yes" << endl;
}
