#include <bits/stdc++.h>
using namespace std;
const long long mx = 1e18 + 7;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  int sum = (a + b + c) / 2;
  if (a == sum || b == sum || c == sum) {
    cout << "Yes" << endl;
  } else
    cout << "No" << endl;
  return 0;
}
