#include<bits/stdc++.h>
using namespace std;
#include<vector>

int main(){
  vector<int> x(3);
  cin >> x.at(0) >> x.at(1) >> x.at(2) >> endl;
  sort (x.begin(), x.end());
  if (x.at(0) + x.at(1) == x.at(2)){
     cout << "Yes" << endl;
  }
  else {
     cout << "No" << endl;
  }
}