#include <bits/stdc++.h>
using namespace std;
int main() {
  long a, b, k;
  cin >> a >> b >> k;
  a = abs(a);
  b = abs(b);
  if (a + b > k || (k - a + b) % 2 == 1)
    cout << "No" << endl;
  else
    cout << "Yes" << endl;
}
