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