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