#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int a, b, s;
  cin >> a >> b >> s;
  if (abs(s) < abs(a) + abs(b))
    cout << "No";
  else {
    if ((abs(s) & 1) != ((abs(a) + abs(b)) & 1))
      cout << "No";
    else
      cout << "Yes";
  }
}
