#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  string ans = "No";
  if (a >= b && a >= c) {
    if (a == b + c) {
      ans = "Yes";
    }
  } else if (b >= a && b >= c) {
    if (b == a + c) {
      ans = "Yes";
    }
  } else if (c >= a && c >= b) {
    if (c == a + b) {
      ans == "Yes";
    }
  }
  cout << ans << endl;
  return 0;
}
