#include<iostream>
using namespace std;
int main(){
  int a,b,c;
  cin>>a>>b>>c;
  if(a==b+c)
    cout<<Yes<<endl;
  else if(b==a+c)
    cout<<Yes<<endl;
  else if(c==a+b)
    cout<<Yes<<endl;
  else
    cout<<No<<endl;
}