#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  vector<long long> V(3);
  cin >> V[0] >> V[1] >> V[2];
  sort(V.begin(), V.end());
  if (V[0] == V[1] || V[1] == V[2] || V[0] + V[1] == V[2])
    cout << "Yes\n";
  else
    cout << "No\n";
  return 0;
}
