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