#include <bits/stdc++.h>
const int INF = 100100100;
const int MOD = (int)1e9 + 7;
using namespace std;
using v = vector<int>;
using ll = long long;
template <class T = int>
T in() {
  T x;
  cin >> x;
  return (x);
}
int main(int argc, char *argv[]) {
  int a, b, c;
  cin >> a >> b >> c;
  string res;
  if (a == b or b == c or c == a)
    res = "Yes";
  else if ((a == b + c) or (b == c + a) or (c == a + b))
    res = "Yes";
  else
    res = "No";
  cout << res << endl;
  return 0;
}
