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