#include <bits/stdc++.h>
using namespace std;
int main() {
  vector<int> data;
  int sum = 0;
  bool ok = false;
  for (int i = 0; i < 3; i++) {
    cin >> data[i];
    sum += data[i];
  }
  for (int i = 0; i < 3; i++) {
    long long ans;
    ans = sum - data[i];
    if (data[i] == ans) ok = true;
  }
  if (ok)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
