#include <bits/stdc++.h>
using namespace std;
int main() {
  long long a, b, s, t;
  cin >> a >> b >> s;
  if (a < 0) a *= -1;
  if (b < 0) b *= -1;
  t = (s - (a + b));
  if (t >= 0 && t % 2 == 0)
    cout << "Yes\n";
  else
    cout << "No\n";
}
