#include<iostream>
#include<set>
using namespace std;
int main(){
    int a,b,c;
    cin >> a >> b >> c;
    if(a+b==c)  cout << "Yes\n";
    else if(a+c==b)  cout << "Yes\n";
    else if(b+c==a)  cout << "Yes\n";
    else    cout << "No\n"
}