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