#include <iostream>
#include <string>
#include <set>
#include <vector>
#include <algorithm>


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