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