#include <bits/stdc++.h>
using namespace std;
signed main() {
  int a, b, c, d, e;
  cin >> a >> b >> c;
  d = max(a, b);
  e = max(d, c);
  if (e == a) {
    if (e == b + c) {
      cout << "Yes\n";
    } else {
      cout << "No\n";
    }
  }
  if (e == b) {
    if (e == a + c) {
      cout << "Yes\n";
    } else {
      cout << "No\n";
    }
  }
  if (e == c) {
    if (e == a + b) {
      cout << "Yes\n";
    } else {
      cout << "No\n";
    }
  }
}
