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