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

int main(){
	int a,b,c;
    cin >> a >> b >> c;
    int s = (a+b+c)/2;
    else
      if((a==s||b==s||c==s)&&2*s==a+b+c)
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
}
