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