#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <cmath>
#include <map>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> plglg;
typedef pair<double, ll> pdlg;
typedef tuple<int, int, int> tiii;
typedef tuple<ll, ll, ll> tlglglg;
typedef tuple<double, double, double> tddd;
static const int giga = pow(10,9);

int main(void){
  vector<int> a[3];
  cin >> a[0] >> a[1] >> a[2];
  sort(a.begin(), a.end(), greater<int>);

  if(a[0] == a[1] + a[2]){
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
  
  return 0;
}