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