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