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

int main(void){
 vector<int> n(3);
 cin >> a[0] >> a[1] >> a[2];
 sort(a.begin(), a.end());
 cout << ((a[0]+a[1]==a[2]) ? "Yes" : "No") << endl; 
 return 0;
}