#include <bits/stdc++.h>
using namespace std;
int main() {
  int a = 0, b = 0, c = 0;
  cin >> a >> b >> c;
  if ((a + b + c) % 2 == 0)
    cout << "YES"
         << "\n";
  else
    cout << "NO"
         << "\n";
}
