#include<iostream>
#include<vector>
#include<algorithm>


using namespace std;

int main(){
  vector<int> aa(3);
  
  for(auto &x:aa){
    cin>>x;
  }
  
  
  sort(aa.begin().aa.end());
  
  if(aa[0]+aa[1]==aa[2]){
    cout<<"Yes"<<endl;
  }
  else{
	cout<<"No"<<endl;
  }
}