#include<bits/stdc.h++>
using namespace std;

int main(){
  int a , b, c , d;
  cin >> a >> b >> c;
    if(a + b == c){
      d++;
    }if (b + c  == a){
      d++;
    }if (c + a == b){
      d++;
    }
  
  if(d >= 1){
    cout << "Yes" << endl;
  }else{
    cout << "No" << endl;
  }
}
      
