#include <iostream>
using namespace std;

int main(void) {

    int a, b, c;
    cin >> a >> b >> c;

    bool can;
    if (a + b == c || b + c == a || c + a == b) cna = true;
    else can = false;

    cout << (can ? "Yes" : "No") << endl;
        

    return 0;
}