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