#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c, d;
  cin >> a >> b >> c;
  d = (a + b + c);
  if (d / 2 == a || d / 2 == b || d / 2 == c) {
    cout << "Yes";
  } else {
    cout << "No";
  }
  return 0;
}
