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