#include <bits/stdc++.h>
using namespace std;
int main() {
  int a[3];
  cin >> a[0] >> a[1] >> a[2];
  int sum, i;
  sum = 0;
  for (i = 0; i < 3; i++) {
    sum += a[i];
  }
  sum /= 2;
  cout << ((sum == a[0] || sum == a[1] || sum == a[2]) ? "Yes" : "No") << endl;
  return 0;
}
