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