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