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