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