#include <bits/stdc++.h>
using namespace std;
int main() {
  int a[3];
  cin >> a[0] >> a[1] >> a[2];
  sort(a, a + 3);
  cout << (a[0] == a[1] + a[2] || a[0] + a[1] == a[2] ? "Yes" : "No") << endl;
}
