#include <bits/stdc++.h>
using namespace std;
int main(int argc, const char *argv[]) {
  int a, b, c;
  cin >> a >> b >> c;
  int total = a + b + c;
  int half = total / 2;
  if (a == half || b == half || c == half) {
    cout << "Yes" << '\n';
  } else {
    cout << "No" << '\n';
  }
  return 0;
}
