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

int main() {
	vector<int> a(3);
    getline(cin,a);
    sort(a.begin(),a.end());
    if(a.at(0)+a.at(1) == a.at(2)){
      cout << "Yes" << endl;
    }
    else{
      cout << "No" << endl;
    }
}
