#include <bits/stdc++.h>
using namespace std;
long long a, b, c;
int main() {
  cin >> a >> b >> c;
  if (a + b + c == max({a, b, c}) * 2) {
    cout << "Yes" << endl;
  } else if (a == b) {
    cout << "Yes" << endl;
  } else if (b == c) {
    cout << "Yes" << endl;
  } else if (c == a) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
  return 0;
}
