#include <bits/stdc++.h>
using namespace std;
int main() {
  long long a, b, s;
  cin >> a >> b >> s;
  if (s >= (abs(a) + abs(b))) {
    long long diff = s - abs(a) - abs(b);
    if (!(diff % 2))
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
  } else
    cout << "No" << endl;
}
