#include <bits/stdc++.h>
using namespace std;
int main() {
  long long a, b, s;
  cin >> a >> b >> s;
  cout << (llabs(a) + llabs(b) <= s && (s - (llabs(a) + llabs(b))) % 2 == 0
               ? "Yes"
               : "No")
       << endl;
}
