#include <bits/stdc++.h>
using namespace std;
int main() {
  std::ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long test = 1;
  while (test--) {
    long long a, b, c = 1, k, i, n, j, ans, temp, p, m;
    cin >> n;
    int arr[3];
    cin >> arr[0] >> arr[1] >> arr[2];
    sort(arr, arr + 3);
    if (arr[0] + arr[1] == arr[2])
      cout << "Yes";
    else
      cout << "No";
  }
}
