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