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

int main() {
  int a,b,c;
  cin >> a >> b >> c;
  if(a+b==c){
    cout << "Yes" << endl;
  }
  else if(a+c==b){
    cout << "Yes" << endl;
  }
  else if(b+c==a){
    cout << "Yes" << endl;
  }
  else {
    cout << "No" << end;
  }
}