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