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