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