#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a,b,c;
  cin >> a >> b >> c;
  bool A = 0;
  if(a+b==c||a+c==b||b+c==a)A=1;
 if(A)
  cout << Yes <<endl;
  else{
  cout << No <<endl;}
}