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

int main(){
 int a,b,c,d,e,f;
 cin >> a >> b >> c;
 d = (max(a,b),c);
 e = a+ b+c-d

 if(d == e){
 	cout << "Yes" << endl;
 }
 else{
 	cout << "No" << endl;
 }

}