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