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