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