#include <bits/stdc++.h>
using namespace std;
int main() {
  int a[3];
  cin >> a[0] >> a[1] >> a[2];
  bool f = false;
  int tmp = 0;
  int total = a[0] + a[1] + a[2];
  for (int i = 0; i < 2; i++) {
    total -= a[i];
    tmp += a[i];
    if (total == tmp) f = true;
  }
  if (f)
    cout << "Yes";
  else
    cout << "No";
}
