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