#include <bits/stdc++.h>

using namespace std;

int main () {

    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);

    vector<int> c(3);
    for(int i = 0; i < N; ++i)
      cin >> c[i];
    sort(c.begin(), c.end());
    cout << (c[2] != c[1] + c[0] ? "No": "Yes") << '\n';
    
    return 0;
}

