#include <bits/stdc++.h>
using namespace std;
using ll = long long;
map<int, int> mpa, mpb;
priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>> pque;
int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  int a, b, c;
  cin >> a >> b >> c;
  if (a + b == c || b + c == a || c + a == b)
    "Yes";
  else
    "No";
  return 0;
}
