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