#include <bits/stdc++.h>
using namespace std;
int main() {
  int A, B, C;
  cin >> A >> B >> C;
  int ans = (A + B + C) / 2;
  if (ans == A || ans == B || ans == C) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
}
