#include <bits/stdc++.h>
const int MOD = 1000000007, INF = 1111111111;
using namespace std;
int main() {
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  int a, b, c;
  cin >> a >> b >> c;
  if (a == b + c || b + c == a || c + a == b)
    cout << "Yes";
  else
    cout << "No";
  return 0;
}
