#include <bits/stdc++.h>
using namespace std;
int main(int argc, char** argv) {
  long long int n, a, b, c;
  cin >> a >> b >> n;
  c = abs(a) + abs(b);
  if (c > n) {
    cout << "No";
    return 0;
  }
  if ((c % 2 == 0 && n % 2 == 0) || (c % 2 != 0 && n % 2 != 0))
    cout << "Yes";
  else
    cout << "No";
}
